1. Association and social behaviour;Arnold,1985
2. Ethology of Free Ranging Domestic Animals;Arnold,1978
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4. The effect of social buffering on fear responses in sheep (Ovis aries);Averós;Appl. Anim. Behav. Sci.,2013
5. Behavioural reactivity of ewes and lambs during partial and total social isolation;Barnard;Appl. Anim. Behav. Sci.,2015