cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.48370/ofd/wstwft
title: Sorex araneus - 161027, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1991-07-27, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/gbei0d
title: Sorex araneus - 10216, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1955-07-07, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/tg3cf3
title: Sorex araneus - 110816, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1973-09-09, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/fdg3p2
title: Sorex araneus - 107461, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1972-09-24, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/nwva1l
title: Sorex araneus - 11468, 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/tkkp54
title: Sorex araneus - 22344, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1959-06-20, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/mhomh9
title: Sorex araneus - 19901, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1958-04-15, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/oud80k
title: Sorex araneus - 22967, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1959-08-07, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/cnmjns
title: Sorex araneus - 124119, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1977-01-24, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/dmtqfe
title: Sorex araneus - 65574, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1967-10-04, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/lu29b5
title: Sorex araneus - 2733, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1953-07-29, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/utsryi
title: Sorex araneus - 32817, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1963-08-17, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/djvsn1
title: Sorex araneus - 18409, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1957-07-07, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/zxhzdl
title: Sorex araneus - 21725, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1959-05-09, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/9xdjss
title: Sorex araneus - 99951, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1971-11-19, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/7zqmtc
title: Sorex araneus - 54119, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1966-08-11, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/aibkkk
title: Sorex araneus - 98809, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1971-07-31, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/094kzy
title: Sorex araneus - 5728, 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/gvbvqr
title: Sorex araneus - 2516, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1953-07-22, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/rlx64c
title: Sorex araneus - 84221, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1968-11-30, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/uqgk0d
title: Sorex araneus - 1065, 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/vx7mhc
title: Sorex araneus - 1293, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1953-06-05, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/ianqsb
title: Sorex araneus - 15009, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1955-09-27, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/wfybfg
title: Sorex araneus - 25844, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1961-09-07, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/a8stgt
title: Sorex araneus - 143073, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1982-09-24, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/mgl2zc
title: Sorex araneus - 2500, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1953-07-21, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/yf2kvd
title: Sorex araneus - 110573, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1973-08-12, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/c0jwp3
title: Sorex araneus - 110400, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1973-07-21, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/zurnqt
title: Sorex araneus - 29022, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1962-09-06, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/tkgtor
title: Sorex araneus - 4616, 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/6fwo9g
title: Sorex araneus - 162993, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1993-10-01, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/levauh
title: Sorex araneus - 98682, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1971-07-26, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/znkvi3
title: Sorex araneus - 53426, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1966-07-29, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/fvcmvu
title: Sorex araneus - 2009, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1953-07-03, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/im6irg
title: Sorex araneus - 16700, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1956-04-08, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/q22ylm
title: Sorex araneus - 45901, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1965-09-17, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/dlonnx
title: Sorex araneus - 15079, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1955-09-29, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/39pls3
title: Sorex araneus - 18558, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1957-07-18, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/ofeopj
title: Sorex araneus - 29246, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1962-09-24, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/tf3yon
title: Sorex araneus - 115438, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1974-10-04, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/rtcbay
title: Sorex araneus - 52313, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1966-07-05, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/j3baw7
title: Sorex araneus - 6176, 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/sder8l
title: Sorex araneus - 32466, 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/fozdef
title: Sorex araneus - 28061, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1962-06-02, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/8ukbz5
title: Sorex araneus - 18822, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1957-08-22, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/zx4tjb
title: Sorex araneus - 104767, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1972-05-24, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/cwc8hs
title: Sorex araneus - 2613, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1953-07-26, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/bacur6
title: Sorex araneus - 115467, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1974-10-09, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/gsymaj
title: Sorex araneus - 106758, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1972-07-26, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/fqzwrx
title: Sorex araneus - 106944, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1972-07-30, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/rxhle6
title: Sorex araneus - 53963, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1966-08-03, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/awwszf
title: Sorex araneus - 14950, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1955-09-27, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/59raxe
title: Sorex araneus - 28337, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1962-07-17, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/auco83
title: Sorex araneus - 16424, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1956-01-20, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/yrm3fa
title: Sorex araneus - 17467, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1956-09-30, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/wke3kl
title: Sorex araneus - 468, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1952-10-27, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/2ycdpj
title: Sorex araneus - 13703, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1955-09-07, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/b2lrlj
title: Sorex araneus - 52185, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1966-06-27, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/uebcoc
title: Sorex araneus - 32888, 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/phsgpj
title: Sorex araneus - 3895, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1953-10-22, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/k6xgzh
title: Sorex araneus - 19425, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1957-12-12, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/tu3ejt
title: Sorex araneus - 11679, 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/tasdkx
title: Sorex araneus - 10427, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1955-07-11, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/b5y0ah
title: Sorex araneus - 32760, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1963-08-11, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/kkwphb
title: Sorex araneus - 96865, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1970-12-20, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/hp5brv
title: Sorex araneus - 20492, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1958-10-21, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/spzixk
title: Sorex araneus - 76870, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1968-09-03, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/hwuy3u
title: Sorex araneus - 107067, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1972-08-02, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/ajrabb
title: Sorex araneus - 98176, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1971-07-07, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/xiewnj
title: Sorex araneus - 62303, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1967-04-03, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/s1c6io
title: Sorex araneus - 162814, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1993-07-28, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/kpjwbo
title: Sorex araneus - 114319, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1974-09-03, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/goz412
title: Sorex araneus - 16510, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1956-02-15, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/kbbf60
title: Sorex araneus - 1830, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1953-06-24, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/vjorxg
title: Sorex araneus - 11493, 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/9hrrow
title: Sorex araneus - 46741, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1965-10-08, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/ed0ux8
title: Sorex araneus - 4941, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1954-07-03, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/cpfi51
title: Sorex araneus - 20253, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1958-08-16, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/0nsudx
title: Sorex araneus - 26346, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1961-10-20, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/vxibxn
title: Sorex araneus - 111005, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1973-09-28, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/wcgesj
title: Sorex araneus - 1857, Zoological collection of the Mammal Research Institute, PAS

description: Sorex araneus (Common shrew) from Zoological collection of the Mammal Research Institute, PAS. Collected 1953-06-27, in: Białowieża National Park, Poland. Material type: