Applied Animal Behaviour Science
Applied Animal Behaviour Science > 2002 > 75 > 2 > 115-132
Applied Animal Behaviour Science > 2002 > 76 > 1 > 83-91
Applied Animal Behaviour Science > 2002 > 75 > 2 > 115-132
Applied Animal Behaviour Science > 2002 > 76 > 1 > 83-91