cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.48370/ofd/g2whon
title: Sorex araneus - 15561, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1955-11-06, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/flauvn
title: Sorex araneus - 54316, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1966-09-06, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/h053lp
title: Sorex araneus - 28622, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1962-08-04, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/24dvbm
title: Sorex araneus - 28755, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1962-08-17, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/paqmh8
title: Sorex araneus - 7125, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1954-11-05, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/sqhvha
title: Sorex araneus - 99870, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1971-10-26, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/ntsvlk
title: Sorex araneus - 25416, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1961-07-31, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/2fd0fz
title: Sorex araneus - 5743, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1954-08-01, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/bxylwp
title: Sorex araneus - 20063, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1958-07-10, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/5jihno
title: Sorex araneus - 18884, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1957-08-30, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/1ql480
title: Sorex araneus - 2596, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1953-07-25, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/qqykcx
title: Sorex araneus - 98900, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1971-08-06, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/dxtfbl
title: Sorex araneus - 64577, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1967-07-26, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/f7xleh
title: Sorex araneus - 76438, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1968-08-05, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/pq2euz
title: Sorex araneus - 1924, 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/cvzxpc
title: Sorex araneus - 117010, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1975-08-26, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/xcfvid
title: Sorex araneus - 65075, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1967-08-28, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/k3uygw
title: Sorex araneus - 114246, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1974-08-12, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/syz8nd
title: Sorex araneus - 64924, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1967-08-05, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/ljjjxf
title: Sorex araneus - 160450, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1990-09-27, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/xxxs5v
title: Sorex araneus - 160991, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1991-07-14, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/aaoiip
title: Sorex araneus - 32468, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1963-07-24, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/bafrn7
title: Sorex araneus - 1337, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1953-06-07, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/d0v6eq
title: Sorex araneus - 25232, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1961-07-17, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/whdyka
title: Sorex araneus - 935, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1953-05-27, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/grbamg
title: Sorex araneus - 20441, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1958-10-01, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/zii7t4
title: Sorex araneus - 4757, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1954-06-22, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/xdz6yx
title: Sorex araneus - 5084, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1954-07-10, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/sxyefb
title: Sorex araneus - 98288, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1971-07-15, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/ho3jkx
title: Sorex araneus - 28437, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1962-07-25, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/lou3gb
title: Sorex araneus - 4611, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1954-06-12, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/bulnhl
title: Sorex araneus - 9270, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1955-06-22, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/p0vefk
title: Sorex araneus - 11640, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1955-07-26, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/vcy4tm
title: Sorex araneus - 169232, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 2004-07-11, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/do10kx
title: Sorex araneus - 14113, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1955-09-14, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/ixkxc4
title: Sorex araneus - 2541, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1953-07-23, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/n3xnv0
title: Sorex araneus - 116153, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1975-04-01, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/js1ch5
title: Sorex araneus - 19924, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1958-04-25, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/xhpugr
title: Sorex araneus - 98531, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1971-07-24, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/r0pdej
title: Sorex araneus - 15282, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1955-10-09, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/p3vmrm
title: Sorex araneus - 32333, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1963-07-12, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/w079tj
title: Sorex araneus - 64177, 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/7rn3f5
title: Sorex araneus - 90962, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1970-06-09, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/pqkijl
title: Sorex araneus - 98346, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1971-07-17, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/y1adon
title: Sorex araneus - 34463, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1963-12-28, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/5ljzse
title: Sorex araneus - 16559, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1956-03-16, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/2jhnkj
title: Sorex araneus - 108015, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1972-11-17, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/dgxwrt
title: Sorex araneus - 25941, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1961-09-15, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/amv5aa
title: Sorex araneus - 113522, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1974-07-16, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/tlyccg
title: Sorex araneus - 1153, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1953-06-02, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/mf61dg
title: Sorex araneus - 98568, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1971-07-25, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/bbiele
title: Sorex araneus - 99035, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1971-09-04, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/f4chum
title: Sorex araneus - 166917, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1998-07-16, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/66moou
title: Sorex araneus - 64115, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1967-07-20, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/wocwlg
title: Sorex araneus - 2827, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1953-08-01, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/vx0puj
title: Sorex araneus - 16028, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1955-11-21, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/r15xv7
title: Sorex araneus - 64590, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1967-07-26, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/k3hmmm
title: Sorex araneus - 76434, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1968-08-05, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/ldgzet
title: Sorex araneus - 25925, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1961-09-14, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/cs5f1h
title: Sorex araneus - 148930, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1983-10-05, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/yqzi5s
title: Sorex araneus - 106826, 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/vgqyzo
title: Sorex araneus - 109282, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1973-02-03, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/kfc1hm
title: Sorex araneus - 11466, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1955-07-24, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/ucnc1p
title: Sorex araneus - 97590, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1971-05-06, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/vetm66
title: Sorex araneus - 76122, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1968-07-20, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/b0vbwq
title: Sorex araneus - 91887, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1970-08-12, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/dpd7s8
title: Sorex araneus - 104647, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1972-05-12, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/c5ha2x
title: Sorex araneus - 76777, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1968-08-26, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/dy7hgi
title: Sorex araneus - 106168, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1972-06-29, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/6nfreb
title: Sorex araneus - 110604, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1973-08-17, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/uoszan
title: Sorex araneus - 4249, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1954-04-05, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/wiqgir
title: Sorex araneus - 2963, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1953-08-08, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/rjx75f
title: Sorex araneus - 168022, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 2001-09-18, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/5rrshd
title: Sorex araneus - 5782, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1954-08-03, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/j2he7u
title: Sorex araneus - 107154, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1972-08-04, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/saa5b9
title: Sorex araneus - 97489, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1971-04-17, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/thftaf
title: Sorex araneus - 11277, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1955-07-21, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/dk8dur
title: Sorex araneus - 22472, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1959-06-29, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/x3ryls
title: Sorex araneus - 18539, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1957-07-17, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/yqgv80
title: Sorex araneus - 22823, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1959-07-30, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/licjkn
title: Sorex araneus - 98566, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1971-07-25, in: Białowieża National Park, Poland. Material type: