By Spijkerman R P   Dienske H   van Hooff J A R A M   Jens W   in Animal Welfare

ISSN:0962-7286|3|3|193-211

Universities Federation for Animal Welfare‎(1994)‎

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By Beerda B   Schilder M B H   van Hooff J A R A M   de Vries H W   Mol J A   in Animal Welfare

ISSN:0962-7286|9|1|49-62

Universities Federation for Animal Welfare‎(2000)‎

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By Wich S. A.   van der Post D. J.   Heistermann M.   Möhle U.   van Hooff J. A. R. A. M.   Sterck E. H. M.   in International Journal of Primatology

ISSN:0164-0291|24|6|1251-1265

Springer Publishing Company ‎(2003)‎

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