cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.15468/dl.eqb47j
title: Occurrence Download

description: A dataset containing 1 species occurrences available in GBIF matching the query:
{"type":"and","predicates":[{"type":"within","geometry":"POLYGON ((109.628 -0.416816, 109.557735 -0.422382, 109.4892 -0.438945, 109.424082 -0.466096, 109.363983 -0.503167, 109.310385 -0.549246, 109.264605 -0.603197, 109.227772 -0.663693, 109.200792 -0.729244, 109.18433 -0.798237, 109.178791 -0.868973, 109.184313 -0.93971, 109.20076 -1.008707, 109.227729 -1.074264, 109.264554 -1.134767, 109.310331 -1.188727, 109.363933 -1.234813, 109.424038 -1.271892, 109.489169 -1.299049, 109.557719 -1.315615, 109.628 -1.321183, 109.698281 -1.315615, 109.766831 -1.299049, 109.831962 -1.271892, 109.892067 -1.234813, 109.945669 -1.188727, 109.991446 -1.134767, 110.028271 -1.074264, 110.05524 -1.008707, 110.071687 -0.93971, 110.077209 -0.868973, 110.07167 -0.798237, 110.055208 -0.729244, 110.028228 -0.663693, 109.991395 -0.603197, 109.945615 -0.549246, 109.892017 -0.503167, 109.831918 -0.466096, 109.7668 -0.438945, 109.698265 -0.422382, 109.628 -0.416816))"},{"type":"equals","key":"CLASS_KEY","value":"212","matchCase":false},{"type":"greaterThanOrEquals","key":"YEAR","value":"2015","matchCase":false},{"type":"not","predicate":{"type":"in","key":"BASIS_OF_RECORD","values":["MATERIAL_CITATION","MATERIAL_SAMPLE","PRESERVED_SPECIMEN"],"matchCase":false}},{"type":"lessThanOrEquals","key":"COORDINATE_UNCERTAINTY_IN_METERS","value":"10000","matchCase":false},{"type":"equals","key":"LICENSE","value":"CC BY 4.0","matchCase":false}]}

 The dataset includes 1 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0037800-251120083545085/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.ahcm37
title: Occurrence Download

description: A dataset containing 24 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Protodriloides symbioticus",
 "HasCoordinate is true",
 "HasGeospatialIssue is false"
 ]
}

 The dataset includes 24 records from 6 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0037801-251120083545085/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.cgja8y
title: Occurrence Download

description: A dataset containing 5 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Tarsius pelengensis",
 "HasCoordinate is TRUE"
 ]
}

 The dataset includes 5 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0037802-251120083545085/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.17026/ar/j1bzxk
title: PAN-00163952 - terra sigillata bowl type Drag. 29

description: &lt;p&gt;This find is registered at Portable Antiquities of the Netherlands with number PAN-00163952&lt;/p&gt;
description: Modified: 2025-10-15T10:21:18+02:00
DOI: 10.6084/m9.figshare.30821957
title: <b><i>vanA_vanM_E. faecium</i></b>

description: This study investigated the genomic characteristics of <i>vanA</i>- and <i>vanM</i>-positive <i>Enterococcus faecium</i> by analyzing a clinical isolate (24VR2004, ST80, CC17) from a 6-year-old pediatric oncology patient with pelvic malignancy, combined with 97 global strains from NCBI. Complete genome sequencing, resistance/virulence gene analysis via CARD/VFDP, and phylogenetic analysis were performed.
DOI: 10.6084/m9.figshare.30821957.v1
title: <b><i>vanA_vanM_E. faecium</i></b>

description: This study investigated the genomic characteristics of <i>vanA</i>- and <i>vanM</i>-positive <i>Enterococcus faecium</i> by analyzing a clinical isolate (24VR2004, ST80, CC17) from a 6-year-old pediatric oncology patient with pelvic malignancy, combined with 97 global strains from NCBI. Complete genome sequencing, resistance/virulence gene analysis via CARD/VFDP, and phylogenetic analysis were performed.
DOI: 10.15468/dl.85ue5j
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{"type":"and","predicates":[{"type":"within","geometry":"POLYGON ((101.446 -0.413816, 101.375735 -0.419382, 101.3072 -0.435945, 101.242082 -0.463096, 101.181984 -0.500167, 101.128385 -0.546246, 101.082605 -0.600197, 101.045772 -0.660693, 101.018792 -0.726245, 101.00233 -0.795237, 100.996791 -0.865973, 101.002313 -0.93671, 101.018761 -1.005707, 101.045729 -1.071264, 101.082555 -1.131767, 101.128332 -1.185727, 101.181933 -1.231813, 101.242039 -1.268892, 101.307169 -1.296049, 101.375719 -1.312615, 101.446 -1.318183, 101.516281 -1.312615, 101.584831 -1.296049, 101.649961 -1.268892, 101.710067 -1.231813, 101.763668 -1.185727, 101.809445 -1.131767, 101.846271 -1.071264, 101.873239 -1.005707, 101.889687 -0.93671, 101.895209 -0.865973, 101.88967 -0.795237, 101.873208 -0.726245, 101.846228 -0.660693, 101.809395 -0.600197, 101.763615 -0.546246, 101.710016 -0.500167, 101.649918 -0.463096, 101.5848 -0.435945, 101.516265 -0.419382, 101.446 -0.413816))"},{"type":"equals","key":"CLASS_KEY","value":"212","matchCase":false},{"type":"greaterThanOrEquals","key":"YEAR","value":"2015","matchCase":false},{"type":"not","predicate":{"type":"in","key":"BASIS_OF_RECORD","values":["MATERIAL_CITATION","MATERIAL_SAMPLE","PRESERVED_SPECIMEN"],"matchCase":false}},{"type":"lessThanOrEquals","key":"COORDINATE_UNCERTAINTY_IN_METERS","value":"10000","matchCase":false},{"type":"equals","key":"LICENSE","value":"CC BY 4.0","matchCase":false}]}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0037804-251120083545085/datasets/export for details.
DOI: 10.34740/kaggle/dsv/7822036
title: Housing_Dataset
DOI: 10.15468/dl.rc2rum
title: Occurrence Download

description: A dataset containing 4 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Protodrilus affinis",
 "HasCoordinate is true",
 "HasGeospatialIssue is false"
 ]
}

 The dataset includes 4 records from 3 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0037805-251120083545085/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.7e9hgq
title: Occurrence Download

description: A dataset containing 26877 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Tracheophyta",
 "DecimalLatitude is greater than or equal to 4.085278",
 "DecimalLatitude is less than or equal to 9.085278",
 "DecimalLongitude is greater than or equal to 110.0",
 "DecimalLongitude is less than or equal to 115.0",
 "HasCoordinate is TRUE",
 "HasGeospatialIssue is FALSE"
 ]
}

 The dataset includes 26877 records from 62 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0037806-251120083545085/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.z8nwsq
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Tarsius pumilus",
 "HasCoordinate is TRUE"
 ]
}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0037808-251120083545085/datasets/export for details.
DOI: 10.15468/dl.kc4az5
title: Occurrence Download

description: A dataset containing 1246 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Continent is Africa",
 "Country is Benin",
 "OccurrenceStatus is Present",
 "TaxonKey is Mangifera indica"
 ]
}

 The dataset includes 1246 records from 52 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0037807-251120083545085/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.17026/ar/xfkphq
title: PAN-00175683 - pinch lead

description: &lt;p&gt;This find is registered at Portable Antiquities of the Netherlands with number PAN-00175683&lt;/p&gt;
description: Modified: 2025-10-28T11:53:05+01:00
DOI: 10.5281/zenodo.17856604
title: Data for Motor Imagery and Pelvic Floor Muscle Activation in Post-menopausal Women with Stress Urinary Incontinence: Pilot Randomized Control Trial

description: This file contains raw data from: Motor Imagery and Pelvic Floor Muscle Activation in Post-menopausal Women with Stress Urinary Incontinence: Pilot Randomized Control Trial
DOI: 10.5281/zenodo.17856603
title: Data for Motor Imagery and Pelvic Floor Muscle Activation in Post-menopausal Women with Stress Urinary Incontinence: Pilot Randomized Control Trial

description: This file contains raw data from: Motor Imagery and Pelvic Floor Muscle Activation in Post-menopausal Women with Stress Urinary Incontinence: Pilot Randomized Control Trial
DOI: 10.5281/zenodo.17854889
title: Dimensional Relevance Modulates Early Response priming

description: Based on our experiment design, we expect that the prime will elicit early, automatic response activation in a feedforward manner. Specifically, we predicted that the priming effect increases with prime target SOA and with prime visibility. Extending this, we propose that dimensional relevance gates response activation. We hypothesise that the priming effect will be stronger when the prime feature (shape or colour) is congruent with the task-relevant dimension. In the colour-relevant task, the priming effect is independent of the shape. Conversely, in shape-relevant tasks, the priming effect is independent of colour.
DOI: 10.5281/zenodo.17854890
title: Dimensional Relevance Modulates Early Response priming

description: Based on our experiment design, we expect that the prime will elicit early, automatic response activation in a feedforward manner. Specifically, we predicted that the priming effect increases with prime target SOA and with prime visibility. Extending this, we propose that dimensional relevance gates response activation. We hypothesise that the priming effect will be stronger when the prime feature (shape or colour) is congruent with the task-relevant dimension. In the colour-relevant task, the priming effect is independent of the shape. Conversely, in shape-relevant tasks, the priming effect is independent of colour.
DOI: 10.15468/dl.bsdvzc
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{"type":"and","predicates":[{"type":"within","geometry":"POLYGON ((101.751 -0.407816, 101.680735 -0.413382, 101.6122 -0.429945, 101.547082 -0.457096, 101.486984 -0.494167, 101.433385 -0.540246, 101.387606 -0.594197, 101.350773 -0.654693, 101.323793 -0.720245, 101.307331 -0.789238, 101.301792 -0.859973, 101.307314 -0.93071, 101.323762 -0.999707, 101.35073 -1.065264, 101.387555 -1.125768, 101.433332 -1.179727, 101.486934 -1.225813, 101.547039 -1.262892, 101.612169 -1.290049, 101.680719 -1.306615, 101.751 -1.312183, 101.821281 -1.306615, 101.889831 -1.290049, 101.954961 -1.262892, 102.015066 -1.225813, 102.068668 -1.179727, 102.114445 -1.125768, 102.15127 -1.065264, 102.178238 -0.999707, 102.194686 -0.93071, 102.200208 -0.859973, 102.194669 -0.789238, 102.178207 -0.720245, 102.151227 -0.654693, 102.114394 -0.594197, 102.068615 -0.540246, 102.015016 -0.494167, 101.954918 -0.457096, 101.8898 -0.429945, 101.821265 -0.413382, 101.751 -0.407816))"},{"type":"equals","key":"CLASS_KEY","value":"212","matchCase":false},{"type":"greaterThanOrEquals","key":"YEAR","value":"2015","matchCase":false},{"type":"not","predicate":{"type":"in","key":"BASIS_OF_RECORD","values":["MATERIAL_CITATION","MATERIAL_SAMPLE","PRESERVED_SPECIMEN"],"matchCase":false}},{"type":"lessThanOrEquals","key":"COORDINATE_UNCERTAINTY_IN_METERS","value":"10000","matchCase":false},{"type":"equals","key":"LICENSE","value":"CC BY 4.0","matchCase":false}]}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0037810-251120083545085/datasets/export for details.
DOI: 10.5281/zenodo.17856784
title: LINF_300008500

description: DEATH kinesin | KIN29; Leishmania infantum (strain JPCM5)
DOI: 10.5281/zenodo.17856783
title: LINF_300008500

description: DEATH kinesin | KIN29; Leishmania infantum (strain JPCM5)
DOI: 10.5281/zenodo.17402764
title: Robust Spectral Sensor
DOI: 10.5281/zenodo.17402765
title: Robust Spectral Sensor
DOI: 10.15468/dl.rr959x
title: Occurrence Download

description: A dataset containing 46667 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Alpinia"
 ]
}

 The dataset includes 46667 records from 502 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0037809-251120083545085/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.es8q9b
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Protodrilus albicans",
 "HasCoordinate is true",
 "HasGeospatialIssue is false"
 ]
}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0037812-251120083545085/datasets/export for details.
DOI: 10.15468/dl.c5baqc
title: Occurrence Download

description: A dataset containing 11 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Tarsius sangirensis",
 "HasCoordinate is TRUE"
 ]
}

 The dataset includes 11 records from 2 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0037813-251120083545085/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.17026/ar/dtliub
title: PAN-00167190 - Roman-Germanic pin with discs and knobs

description: &lt;p&gt;This find is registered at Portable Antiquities of the Netherlands with number PAN-00167190&lt;/p&gt;
description: Modified: 2025-10-07T10:49:19+02:00
DOI: 10.15468/dl.qu8s98
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{"type":"and","predicates":[{"type":"within","geometry":"POLYGON ((114.079 -0.392816, 114.008735 -0.398382, 113.9402 -0.414945, 113.875082 -0.442096, 113.814984 -0.479168, 113.761386 -0.525246, 113.715607 -0.579198, 113.678774 -0.639694, 113.651794 -0.705245, 113.635332 -0.774238, 113.629794 -0.844974, 113.635316 -0.9157110000000001, 113.651763 -0.984707, 113.678732 -1.050265, 113.715557 -1.110768, 113.761334 -1.164727, 113.814935 -1.210814, 113.87504 -1.247892, 113.94017 -1.275049, 114.008719 -1.291615, 114.079 -1.297183, 114.149281 -1.291615, 114.21783 -1.275049, 114.28296 -1.247892, 114.343065 -1.210814, 114.396666 -1.164727, 114.442443 -1.110768, 114.479268 -1.050265, 114.506237 -0.984707, 114.522684 -0.9157110000000001, 114.528206 -0.844974, 114.522668 -0.774238, 114.506206 -0.705245, 114.479226 -0.639694, 114.442393 -0.579198, 114.396614 -0.525246, 114.343016 -0.479168, 114.282918 -0.442096, 114.2178 -0.414945, 114.149265 -0.398382, 114.079 -0.392816))"},{"type":"equals","key":"CLASS_KEY","value":"212","matchCase":false},{"type":"greaterThanOrEquals","key":"YEAR","value":"2015","matchCase":false},{"type":"not","predicate":{"type":"in","key":"BASIS_OF_RECORD","values":["MATERIAL_CITATION","MATERIAL_SAMPLE","PRESERVED_SPECIMEN"],"matchCase":false}},{"type":"lessThanOrEquals","key":"COORDINATE_UNCERTAINTY_IN_METERS","value":"10000","matchCase":false},{"type":"equals","key":"LICENSE","value":"CC BY 4.0","matchCase":false}]}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0037814-251120083545085/datasets/export for details.
DOI: 10.15468/dl.c9z8ah
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Protodrilus brevis",
 "HasCoordinate is true",
 "HasGeospatialIssue is false"
 ]
}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0037815-251120083545085/datasets/export for details.
DOI: 10.15468/dl.82gfpn
title: Occurrence Download

description: A dataset containing 218 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Tarsius spectrumgurskyae",
 "HasCoordinate is TRUE"
 ]
}

 The dataset includes 218 records from 2 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0037816-251120083545085/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.6g3nx5
title: Occurrence Download

description: A dataset containing 1 species occurrences available in GBIF matching the query:
{"type":"and","predicates":[{"type":"within","geometry":"POLYGON ((109.884 -0.377816, 109.813735 -0.383382, 109.745201 -0.399945, 109.680083 -0.427097, 109.619985 -0.464168, 109.566387 -0.510246, 109.520608 -0.564198, 109.483775 -0.624694, 109.456795 -0.690246, 109.440334 -0.759239, 109.434796 -0.829974, 109.440318 -0.900711, 109.456765 -0.969708, 109.483734 -1.035265, 109.520559 -1.095768, 109.566336 -1.149727, 109.619936 -1.195814, 109.680041 -1.232892, 109.745171 -1.260049, 109.81372 -1.276615, 109.884 -1.282183, 109.95428 -1.276615, 110.022829 -1.260049, 110.087959 -1.232892, 110.148064 -1.195814, 110.201664 -1.149727, 110.247441 -1.095768, 110.284266 -1.035265, 110.311235 -0.969708, 110.327682 -0.900711, 110.333204 -0.829974, 110.327666 -0.759239, 110.311205 -0.690246, 110.284225 -0.624694, 110.247392 -0.564198, 110.201613 -0.510246, 110.148015 -0.464168, 110.087917 -0.427097, 110.022799 -0.399945, 109.954265 -0.383382, 109.884 -0.377816))"},{"type":"equals","key":"CLASS_KEY","value":"212","matchCase":false},{"type":"greaterThanOrEquals","key":"YEAR","value":"2015","matchCase":false},{"type":"not","predicate":{"type":"in","key":"BASIS_OF_RECORD","values":["MATERIAL_CITATION","MATERIAL_SAMPLE","PRESERVED_SPECIMEN"],"matchCase":false}},{"type":"lessThanOrEquals","key":"COORDINATE_UNCERTAINTY_IN_METERS","value":"10000","matchCase":false},{"type":"equals","key":"LICENSE","value":"CC BY 4.0","matchCase":false}]}

 The dataset includes 1 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0037819-251120083545085/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.17026/ar/qrpnrh
title: PAN-00072184 - pin with widened round upper part of the shaft

description: &lt;p&gt;This find is registered at Portable Antiquities of the Netherlands with number PAN-00072184&lt;/p&gt;
description: Modified: 2025-10-07T16:26:49+02:00
DOI: 10.15468/dl.nzgxe2
title: Occurrence Download

description: A dataset containing 36944 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Rubus polonicus"
 ]
}

 The dataset includes 36944 records from 272 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0037817-251120083545085/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.jkefg7
title: Occurrence Download

description: A dataset containing 10837 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Tracheophyta",
 "DecimalLatitude is greater than or equal to 14.085278",
 "DecimalLatitude is less than or equal to 19.085278",
 "DecimalLongitude is greater than or equal to 110.0",
 "DecimalLongitude is less than or equal to 115.0",
 "HasCoordinate is TRUE",
 "HasGeospatialIssue is FALSE"
 ]
}

 The dataset includes 10837 records from 37 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0037820-251120083545085/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.ta38s8
title: Occurrence Download

description: A dataset containing 21831 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is one of (Acinonyx jubatus, Aeretes melanopterus, Aeromys tephromelas, Aethalops alecto, Ailuropoda melanoleuca, Ailurus fulgens, Alexandromys fortis, Alexandromys limnophilus, Alticola stoliczkanus, Anathana ellioti, Anourosorex assamensis, Anourosorex schmidi, Anourosorex squamipes, Antilope cervicapra, Apodemus agrarius, Apodemus chevrieri, Apodemus draco, Apodemus gurkha, Apodemus latronum, Apodemus pallipes)",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "Year is greater than or equal to 2000",
 "Year is less than or equal to 2025"
 ]
}

 The dataset includes 21831 records from 146 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0037821-251120083545085/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.30246724
title: High-Dimensional Spatial Autoregression with Latent Factors by Diversified Projections

description: We study one particular type of multivariate spatial autoregression (MSAR) model with diverging dimensions in both responses and covariates. This makes the usual MSAR models no longer applicable due to the high computational cost. To address this issue, we propose a factor-augmented spatial autoregression (FSAR) model. FSAR is a special case of MSAR but with a novel factor structure imposed on the high-dimensional random error vector. The latent factors of FSAR are assumed to be of a fixed dimension. Therefore, they can be estimated consistently by the diversified projections method, as long as the dimension of the multivariate response is diverging. Once the fixed-dimensional latent factors are consistently estimated, they are then fed back into the original SAR model and serve as exogenous covariates. This leads to a novel FSAR model. Thereafter, different components of the high-dimensional response can be modeled separately. To handle the high-dimensional feature, a smoothly clipped absolute deviation (SCAD) type penalized estimator is developed for each response component. We show theoretically that the resulting SCAD estimator is uniformly selection consistent, as long as the tuning parameter is selected appropriately. For practical selection of the tuning parameter, a novel BIC method is developed. Extensive numerical studies are conducted to demonstrate the finite sample performance of the proposed method. Supplementary materials for this article are available online, including a standardized description of the materials available for reproducing the work.