1. The development and significance of abnormal stereotyped behaviours in tethered sows;Cronin,1985
2. Agonistic behaviour in grouped sows. I. The influence of feeding;Csermely,1986
3. Environment and behaviour in husbandry;Dantzer;Folia Vet. Latina,1976
4. Animal Suffering: the Science of Animal Welfare;Dawkins,1980
5. An ethological approach to the welfare of farm animals;Duncan;Proc. 19th Int. Eth. Conf.,1985