By Stafleu F R   Grommers F J   Vorstenbosch J   in Animal Welfare

ISSN:0962-7286|5|3|225-234

Universities Federation for Animal Welfare‎(1996)‎

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By Kan C J   Jager L P   Grommers F J   in Animal Welfare

ISSN:0962-7286|7|4|397-414

Universities Federation for Animal Welfare‎(1998)‎

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