By Galac S.   Kooistra H.S.   Butinar J.   Bevers M.M.   Dieleman S.J.   Voorhout G.   Okkens A.C.   in Theriogenology

ISSN:0093-691X|53|4|941-950

Elsevier‎(2000)‎

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By Galac S   Knol B W   in Animal Welfare

ISSN:0962-7286|6|1|9-15

Universities Federation for Animal Welfare‎(1997)‎

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