cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.48370/ofd/cf0wlg
title: Sorex araneus - 114257, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1974-08-14, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/vwnkdo
title: Sorex araneus - 9763, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1955-07-02, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/lvjmao
title: Sorex araneus - 83925, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1968-11-12, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/g6clgu
title: Sorex araneus - 2257, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1953-07-12, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/5l5pjl
title: Sorex araneus - 107178, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1972-08-05, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/bhsqgc
title: Sorex araneus - 114040, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1974-07-03, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/8onar8
title: Sorex araneus - 6175, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1954-08-20, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/pda167
title: Sorex araneus - 107183, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1972-08-07, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/6dfsug
title: Sorex araneus - 34788, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1964-02-19, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/xoqjw1
title: Sorex araneus - 146427, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1983-05-19, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/w3fvav
title: Sorex araneus - 19617, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1957-12-31, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/aojugh
title: Sorex araneus - 98975, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1971-08-24, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/suuzuc
title: Sorex araneus - 104927, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1972-06-07, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/ih8ke2
title: Sorex araneus - 115279, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1974-09-21, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/lloabi
title: Sorex araneus - 19759, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1958-01-21, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/gij2mo
title: Sorex araneus - 20327, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1958-09-08, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/58vvwj
title: Sorex araneus - 107287, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1972-09-06, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/3mjiwj
title: Sorex araneus - 28162, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1962-06-20, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/ba52bv
title: Sorex araneus - 109333, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1973-02-09, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/ygz8uc
title: Sorex araneus - 19835, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1958-02-19, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/cpcl66
title: Sorex araneus - 98523, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1971-07-23, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/qjuwor
title: Sorex araneus - 5479, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1954-07-26, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/4onrup
title: Sorex araneus - 107016, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1972-07-01, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/dmklku
title: Sorex araneus - 16660, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1956-03-31, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/np1ums
title: Sorex araneus - 9562, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1955-06-30, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/zq4xpi
title: Sorex araneus - 10339, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1955-07-09, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/h5tqql
title: Sorex araneus - 115516, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1974-10-17, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/bbjxi4
title: Sorex araneus - 18444, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1957-07-10, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/f8vju1
title: Sorex araneus - 22695, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1959-07-19, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/v5laty
title: Sorex araneus - 34654, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1964-01-23, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/8azw3g
title: Sorex araneus - 107238, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1972-08-30, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/mcsgud
title: Sorex araneus - 115301, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1974-09-22, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/x98nn6
title: Sorex araneus - 114049, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1974-07-03, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/dy8lsx
title: Sorex araneus - 113423, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1974-07-10, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/3cj9jj
title: Sorex araneus - 34305, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1963-12-03, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/9mdgrf
title: Sorex araneus - 107290, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1972-09-06, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/lruv3x
title: Sorex araneus - 31805, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1963-06-04, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/orvas0
title: Sorex araneus - 12938, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1955-08-24, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/pdyi3t
title: Sorex araneus - 24389, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1961-05-03, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/df0arx
title: Sorex araneus - 110464, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1973-07-25, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/3faunp
title: Sorex araneus - 95481, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1970-11-03, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/fy85zz
title: Sorex araneus - 5350, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1954-07-21, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/c6jh6t
title: Sorex araneus - 64179, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1967-07-25, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/cjvtcu
title: Sorex araneus - 10325, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1955-07-09, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/ngk2wr
title: Sorex araneus - 106827, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1972-07-27, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/ocqipb
title: Sorex araneus - 106620, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1972-07-19, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/3ethsm
title: Sorex araneus - 14494, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1955-09-20, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/nqo9px
title: Sorex araneus - 104361, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1972-02-23, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/sdkp2j
title: Sorex araneus - 32896, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1963-08-23, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/aaieua
title: Sorex araneus - 1031, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1953-06-01, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/anad62
title: Sorex araneus - 157277, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1988-07-28, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/rdjljv
title: Sorex araneus - 74579, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1968-06-18, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/te30hb
title: Sorex araneus - 76627, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1968-08-14, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/rjsde8
title: Sorex araneus - 1931, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1953-06-30, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/oucgyp
title: Sorex araneus - 15847, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1955-11-14, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/ci2udx
title: Sorex araneus - 18153, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1957-06-06, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/cbctmq
title: Sorex araneus - 162147, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1992-07-15, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/ruuixp
title: Sorex araneus - 76198, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1968-07-25, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/hxhrtm
title: Sorex araneus - 99409, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1971-09-27, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/k3mtmd
title: Sorex araneus - 65339, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1967-09-10, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/s53sui
title: Sorex araneus - 18575, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1957-07-19, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/gelq7k
title: Sorex araneus - 26041, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1961-09-21, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/bzhg0g
title: Sorex araneus - 20227, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1958-08-13, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/9zldhj
title: Sorex araneus - 27912, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1962-04-06, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/fqupos
title: Sorex araneus - 169354, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 2004-09-23, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/lf3eqk
title: Sorex araneus - 106648, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1972-07-20, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/1ubqxd
title: Sorex araneus - 98099, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1971-07-05, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/lxyjuy
title: Sorex araneus - 19533, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1957-12-20, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/7q0cvl
title: Sorex araneus - 23940, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1960-08-29, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/obhapz
title: Sorex araneus - 13215, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1955-08-31, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/czebpx
title: Sorex araneus - 104428, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1972-04-07, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/0lia0g
title: Sorex araneus - 2855, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1953-08-02, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/4vedop
title: Sorex araneus - 99274, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1971-09-21, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/yztnt3
title: Sorex araneus - 13365, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1955-09-02, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/0ojw00
title: Sorex araneus - 5607, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1954-07-29, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/zkk1vd
title: Sorex araneus - 3597, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1953-09-09, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/6rgwqw
title: Sorex araneus - 3284, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1953-08-23, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/pa0dmf
title: Sorex araneus - 97606, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1971-05-08, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/fjer6l
title: Sorex araneus - 14895, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1955-09-26, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/kcspeo
title: Sorex araneus - 17777, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1957-02-04, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/co0oo8
title: Sorex araneus - 76069, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1968-07-17, in: Białowieża National Park, Poland. Material type: