cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.5281/zenodo.11223983
title: Linked collectors and determiners for: Rediscovery, taxonomic status, and phylogenetic relationships of two rare and endemic snakes (Serpentes: Psammophiinae) from the southwestern Angolan plateau.

description: Natural history specimen data linked to collectors and determiners held within, "Rediscovery, taxonomic status, and phylogenetic relationships of two rare and endemic snakes (Serpentes: Psammophiinae) from the southwestern Angolan plateau". Claims or attributions were made on Bionomia by volunteer Scribes, https://bionomia.net/dataset/5ed08b95-646d-41d0-bcf6-54ff44603e27 using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, https://gbif.org/dataset/5ed08b95-646d-41d0-bcf6-54ff44603e27. Formatted as a Frictionless Data package.
DOI: 10.5281/zenodo.12611163
title: Linked collectors and determiners for: Rediscovery, taxonomic status, and phylogenetic relationships of two rare and endemic snakes (Serpentes: Psammophiinae) from the southwestern Angolan plateau.

description: Natural history specimen data linked to collectors and determiners held within, "Rediscovery, taxonomic status, and phylogenetic relationships of two rare and endemic snakes (Serpentes: Psammophiinae) from the southwestern Angolan plateau". Claims or attributions were made on Bionomia by volunteer Scribes, https://bionomia.net/dataset/5ed08b95-646d-41d0-bcf6-54ff44603e27 using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, https://gbif.org/dataset/5ed08b95-646d-41d0-bcf6-54ff44603e27. Formatted as a Frictionless Data package.
DOI: 10.5281/zenodo.13386410
title: Linked collectors and determiners for: Rediscovery, taxonomic status, and phylogenetic relationships of two rare and endemic snakes (Serpentes: Psammophiinae) from the southwestern Angolan plateau.

description: Natural history specimen data linked to collectors and determiners held within, "Rediscovery, taxonomic status, and phylogenetic relationships of two rare and endemic snakes (Serpentes: Psammophiinae) from the southwestern Angolan plateau". Claims or attributions were made on Bionomia by volunteer Scribes, https://bionomia.net/dataset/5ed08b95-646d-41d0-bcf6-54ff44603e27 using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, https://gbif.org/dataset/5ed08b95-646d-41d0-bcf6-54ff44603e27. Formatted as a Frictionless Data package.
DOI: 10.5281/zenodo.10584895
title: Linked collectors and determiners for: Rediscovery, taxonomic status, and phylogenetic relationships of two rare and endemic snakes (Serpentes: Psammophiinae) from the southwestern Angolan plateau.

description: Natural history specimen data linked to collectors and determiners held within, "Rediscovery, taxonomic status, and phylogenetic relationships of two rare and endemic snakes (Serpentes: Psammophiinae) from the southwestern Angolan plateau". Claims or attributions were made on Bionomia by volunteer Scribes, https://bionomia.net/dataset/5ed08b95-646d-41d0-bcf6-54ff44603e27 using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, https://gbif.org/dataset/5ed08b95-646d-41d0-bcf6-54ff44603e27. Formatted as a Frictionless Data package.
DOI: 10.5281/zenodo.10705058
title: Linked collectors and determiners for: Rediscovery, taxonomic status, and phylogenetic relationships of two rare and endemic snakes (Serpentes: Psammophiinae) from the southwestern Angolan plateau.

description: Natural history specimen data linked to collectors and determiners held within, "Rediscovery, taxonomic status, and phylogenetic relationships of two rare and endemic snakes (Serpentes: Psammophiinae) from the southwestern Angolan plateau". Claims or attributions were made on Bionomia by volunteer Scribes, https://bionomia.net/dataset/5ed08b95-646d-41d0-bcf6-54ff44603e27 using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, https://gbif.org/dataset/5ed08b95-646d-41d0-bcf6-54ff44603e27. Formatted as a Frictionless Data package.
DOI: 10.5281/zenodo.13123497
title: Linked collectors and determiners for: Rediscovery, taxonomic status, and phylogenetic relationships of two rare and endemic snakes (Serpentes: Psammophiinae) from the southwestern Angolan plateau.

description: Natural history specimen data linked to collectors and determiners held within, "Rediscovery, taxonomic status, and phylogenetic relationships of two rare and endemic snakes (Serpentes: Psammophiinae) from the southwestern Angolan plateau". Claims or attributions were made on Bionomia by volunteer Scribes, https://bionomia.net/dataset/5ed08b95-646d-41d0-bcf6-54ff44603e27 using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, https://gbif.org/dataset/5ed08b95-646d-41d0-bcf6-54ff44603e27. Formatted as a Frictionless Data package.
DOI: 10.5281/zenodo.13972814
title: Linked collectors and determiners for: Rediscovery, taxonomic status, and phylogenetic relationships of two rare and endemic snakes (Serpentes: Psammophiinae) from the southwestern Angolan plateau.

description: Natural history specimen data linked to collectors and determiners held within, "Rediscovery, taxonomic status, and phylogenetic relationships of two rare and endemic snakes (Serpentes: Psammophiinae) from the southwestern Angolan plateau". Claims or attributions were made on Bionomia by volunteer Scribes, https://bionomia.net/dataset/5ed08b95-646d-41d0-bcf6-54ff44603e27 using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, https://gbif.org/dataset/5ed08b95-646d-41d0-bcf6-54ff44603e27. Formatted as a Frictionless Data package.
DOI: 10.5281/zenodo.10872782
title: Linked collectors and determiners for: ARC-PPRI: National Collection of Nematodes and South African Plant-Parasitic Nematode Survey(1901-2014).

description: Natural history specimen data linked to collectors and determiners held within, "ARC-PPRI: National Collection of Nematodes and South African Plant-Parasitic Nematode Survey(1901-2014)". Claims or attributions were made on Bionomia by volunteer Scribes, https://bionomia.net/dataset/5edbfe13-c150-43d3-ac38-729b6aeb6147 using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, https://gbif.org/dataset/5edbfe13-c150-43d3-ac38-729b6aeb6147. Formatted as a Frictionless Data package.
DOI: 10.15468/dl.g3w4n3
title: Occurrence Download

description: A dataset containing 77140 species occurrences available in GBIF matching the query:
{
 "and" : [
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "OccurrenceStatus is Present",
 "TaxonKey is Serratula tinctoria L."
 ]
}

 The dataset includes 77140 records from 778 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0030259-241007104925546/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.5281/zenodo.14649712
title: Molybdenum Isotopes Record Slab Inputs to the Mantle Source of Late Triassic Arc Lavas, Northeast China
DOI: 10.5281/zenodo.14649713
title: Molybdenum Isotopes Record Slab Inputs to the Mantle Source of Late Triassic Arc Lavas, Northeast China
DOI: 10.15468/dl.gzftj5
title: Occurrence Download

description: A dataset containing 17698 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is one of (Neonectria punicea (J.C.Schmidt) Castl. & Rossman, Kretzschmaria deusta (Hoffm.) P.M.D.Martin, Xylaria polymorpha (Pers.) Grev.)",
 "Geometry POLYGON((-9.36035 44.71551,-10.59082 42.81152,-11.82129 36.80928,-7.69043 36.17336,-3.38379 35.88905,3.12012 38.13456,9.18457 38.20366,11.7334 37.16032,12.78809 34.74161,17.09473 33.79741, 23.15918 34.23451,30.10254 32.62087,33.2666 32.99024,35.72754 35.03,33.00293 35.53223,28.69629 35.17381,28.34473 36.31513,25.7959 37.50973,24.91699 39.90974,28.78418 40.6473,30.71777 41.17865,36.87012 45.213,38.18848 46.98025,38.71582 47.7541,39.94629 47.93107,40.20996 49.61071,37.0459 50.34546,35.72754 50.40152,33.79395 52.26816,31.68457 51.94426,31.4209 53.27835,32.56348 53.43572,30.98145 54.77535,30.89355 55.52863,28.43262 56.02295,27.20215 57.65716,27.37793 58.30949,27.90527 59.17593,29.66309 59.88894,27.6416 60.58697,31.50879 62.75473,28.78418 69.83962,30.89355 70.28912,29.22363 71.55274,21.75293 71.30079,14.28223 70.14036,11.38184 67.47492,4.87793 63.66576,-5.53711 71.52491,-10.63477 71.69129,-21.5332 67.74276,-28.56445 65.36684,-24.3457 61.35461,-9.36035 44.71551))",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "Year is greater than or equal to 1980",
 "Year is less than or equal to 2021"
 ]
}

 The dataset includes 17698 records from 172 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0164468-210914110416597/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.cg7v8x
title: Occurrence Download

description: A dataset containing 21709 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is Benin",
 "TaxonKey is Vitellaria paradoxa C.F.Gaertn."
 ]
}

 The dataset includes 21709 records from 72 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0324739-210914110416597/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.tgt42w
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Stator vachelliae Bottimer, 1973",
 {
 "or" : [
 "Country is United States",
 "Country is Canada",
 "Continent is North America"
 ]
 }
 ]
}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0123904-210914110416597/datasets/export for details.
DOI: 10.15468/dl.dn8rbb
title: Occurrence Download

description: A dataset containing 1700 species occurrences available in GBIF matching the query:
{
 "and" : [
 "BasisOfRecord is Human Observation",
 "DatasetKey is iNaturalist Research-grade Observations",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "OccurrenceStatus is Present",
 "TaxonKey is Clangula hyemalis (Linnaeus, 1758)",
 "Year 2011-2018"
 ]
}

 The dataset includes 1700 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0164457-210914110416597/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.cwf498
title: Occurrence Download

description: A dataset containing 77 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Meripilus giganteus (Pers.) P.Karst.",
 {
 "or" : [
 "Country is United States",
 "Country is Canada",
 "Continent is North America"
 ]
 }
 ]
}

 The dataset includes 77 records from 6 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0124054-210914110416597/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.vm53v2
title: Occurrence Download

description: A dataset containing 419 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Geometry POLYGON((-75.66 4.166,-74.83 4.166,-74.83 4.66,-75.66 4.66,-75.66 4.166))",
 "OccurrenceStatus is Present",
 "TaxonKey is Mollusca"
 ]
}

 The dataset includes 419 records from 12 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0200242-210914110416597/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.f3qmb5
title: Occurrence Download

description: A dataset containing 46 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Polyporus pocula (Fr.) Berk. & M.A.Curtis",
 {
 "or" : [
 "Country is United States",
 "Country is Canada",
 "Continent is North America"
 ]
 }
 ]
}

 The dataset includes 46 records from 4 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0124093-210914110416597/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.zahu8m
title: Occurrence Download

description: A dataset containing 763 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Pinzona Mart. & Zucc."
 ]
}

 The dataset includes 763 records from 78 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0204527-210914110416597/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.czpn33
title: Occurrence Download

description: A dataset listing the 3985571 species recorded in GBIF matching the query:
{ }

 The dataset's 3985571 records were derived from 62708 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0014941-230828120925497/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.vkadbb
title: Occurrence Download

description: A dataset containing 103980 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Rhamnus alaternus"
 ]
}

 The dataset includes 103980 records from 746 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0060317-250827131500795/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.s34kdb
title: Occurrence Download

description: A dataset containing 46761 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Geometry POLYGON((-128.20769 50.10131,-125.30534 48.68038,-123.67825 48.22382,-123.46103 48.23412,-123.25427 48.33459,-123.22506 48.35328,-123.18301 48.41168,-123.14329 48.46659,-123.2239 48.54135,-123.26968 48.70107,-123.18541 48.71313,-123.00517 48.78133,-123.01028 48.83942,-123.26604 48.99779,-122.76294 49.00425,-122.40387 49.00182,-121.74678 48.99829,-121.0967 48.99828,-120.93242 49.67887,-121.0263 49.9605,-121.42526 50.17171,-123.23235 50.42987,-125.34452 51.36861,-125.43258 51.5033,-125.6393 51.81946,-125.96311 52.16504,-128.67706 54.46647,-129.05256 54.72462,-129.05256 54.72462,-129.21684 55.47562,-129.475 55.94499,-129.89743 56.10927,-130.21872 56.42466,-130.4362 56.58,-131.46147 56.79748,-131.8688 57.14189,-132.02071 57.51206,-132.78407 58.0337,-133.20651 58.43266,-133.39425 58.66735,-133.57415 58.91016,-134.28606 59.20713,-134.84931 59.41835,-135.08399 59.69997,-135.57684 59.84078,-136.32783 59.74691,-136.61617 59.48362,-136.93802 59.27753,-137.36045 59.08979,-137.5482 58.87857,-137.06929 59.06175,-136.70333 59.13672,-136.42171 59.34794,-136.16355 59.6061,-135.5299 59.69997,-135.10746 59.48875,-134.9287 59.28049,-134.68503 59.18366,-134.12178 58.80816,-133.44119 58.43266,-132.28812 57.15553,-132.06445 57.06172,-132.05375 56.87428,-131.61625 56.53054,-130.64843 56.27355,-130.10865 55.92152,-130.01478 55.33481,-130.39027 54.84197,-131.89226 54.63075,-133.53507 54.30219,-132.99529 53.2461,-132.8356 52.87031,-131.72733 52.2072,-128.20769 50.10131))",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "OccurrenceStatus is Present",
 "TaxonKey is one of (Melittidae, Megachilidae, Halictidae, Colletidae, Apidae, Andrenidae)"
 ]
}

 The dataset includes 46761 records from 44 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0060393-250827131500795/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.zs7wqw
title: Occurrence Download

description: A dataset containing 9896 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Rhus chinensis"
 ]
}

 The dataset includes 9896 records from 197 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0060394-250827131500795/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.qqb9e5
title: Occurrence Download

description: A dataset containing 6 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is one of (Pelvicachromis pulcher)",
 "BasisOfRecord is one of (Specimen, Literature Occurrence, Human Observation, Observation)",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "Year is greater than or equal to 1991",
 "Year is less than or equal to 2025"
 ]
}

 The dataset includes 6 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0060396-250827131500795/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.6084/m9.figshare.30120769
title: Appendix 2-6

description: This systematic review of the literature aimed to analyse the theoretical foundations that underpin SEC interventions in initial teacher training programs, to characterize the types of interventions implemented, to describe the strategies and activities used, and to synthesize findings, limitations, and projections for future research. Fifteen empirical studies examining intervention programs designed to foster the development of social and emotional competences (SEC) in pedagogy students were reviewed. The findings show that most interventions generate significant improvements in competences such as emotion recognition, emotional self-regulation, decision-making, and self-awareness, in addition to impacts on other dimensions such as teaching effectiveness, analytical skills, digital competence, and education for sustainability and gender equality.
DOI: 10.6084/m9.figshare.30120769.v1
title: Appendix 2-6

description: This systematic review of the literature aimed to analyse the theoretical foundations that underpin SEC interventions in initial teacher training programs, to characterize the types of interventions implemented, to describe the strategies and activities used, and to synthesize findings, limitations, and projections for future research. Fifteen empirical studies examining intervention programs designed to foster the development of social and emotional competences (SEC) in pedagogy students were reviewed. The findings show that most interventions generate significant improvements in competences such as emotion recognition, emotional self-regulation, decision-making, and self-awareness, in addition to impacts on other dimensions such as teaching effectiveness, analytical skills, digital competence, and education for sustainability and gender equality.
DOI: 10.6084/m9.figshare.30120781
title: Table S2 (Major Oxide Geochemistry).xlsx

description: Major oxide geochemistry.
DOI: 10.6084/m9.figshare.30120781.v1
title: Table S2 (Major Oxide Geochemistry).xlsx

description: Major oxide geochemistry.
DOI: 10.15468/dl.u87rm9
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Uroleucon erigeronense",
 "Country is Czechia",
 "HasCoordinate is true"
 ]
}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0060399-250827131500795/datasets/export for details.
DOI: 10.15468/dl.vbdfgw
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Uroleucon erigeronense",
 "Country is Austria",
 "HasCoordinate is true"
 ]
}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0060398-250827131500795/datasets/export for details.
DOI: 10.15468/dl.wcfggn
title: Occurrence Download

description: A dataset containing 1 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Uroleucon erigeronense",
 "Country is France",
 "HasCoordinate is true"
 ]
}

 The dataset includes 1 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0060400-250827131500795/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.6084/m9.figshare.30120778
title: Table S4 (Zircon U-Pb Geochronology).xlsx

description: Zircon U-Pb geochronology
DOI: 10.6084/m9.figshare.30120778.v1
title: Table S4 (Zircon U-Pb Geochronology).xlsx

description: Zircon U-Pb geochronology
DOI: 10.15468/dl.3px247
title: Occurrence Download

description: A dataset containing 29283 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Rhus glabra"
 ]
}

 The dataset includes 29283 records from 337 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0060401-250827131500795/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.vrymsq
title: Occurrence Download

description: A dataset containing 2 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Uroleucon erigeronense",
 "Country is Poland",
 "HasCoordinate is true"
 ]
}

 The dataset includes 2 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0060405-250827131500795/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.6084/m9.figshare.17207183.v4
title: A global dataset of pandemic- and epidemic-prone disease outbreaks

description: #### IMPORTANT NOTE #####From October 2024, this project is being updated by Dr. Juan Armando Torres Munguía. In case of questions, requests, or collaborations, you can contact me via GitHub or here. Updated data can be found in data-monthly-updated-1996-2025.zip. You can also access the updated data here: https://github.com/jatorresmunguia/disease_outbreak_news.<br>
DOI: 10.15468/dl.nwfv3d
title: Occurrence Download

description: A dataset containing 2 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is one of (Parotocinclus haroldoi)",
 "BasisOfRecord is one of (Specimen, Literature Occurrence, Human Observation, Observation)",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "Year is greater than or equal to 1991",
 "Year is less than or equal to 2025"
 ]
}

 The dataset includes 2 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0060407-250827131500795/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.czxudc
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Uroleucon erigeronense",
 "Country is Japan",
 "HasCoordinate is true"
 ]
}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0060404-250827131500795/datasets/export for details.
DOI: 10.15468/dl.dhe9vn
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Uroleucon erigeronense",
 "Country is Sweden",
 "HasCoordinate is true"
 ]
}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0060406-250827131500795/datasets/export for details.
DOI: 10.6084/m9.figshare.30120784
title: Table S1 (Plagioclase Compositions).xlsx

description: Plagioclase compositions determined using Michel-Levy technique.
DOI: 10.6084/m9.figshare.30120784.v1
title: Table S1 (Plagioclase Compositions).xlsx

description: Plagioclase compositions determined using Michel-Levy technique.