1. The Beagle as an Experimental Animal;Andersen,1970
2. Allowing captive primates to forage;Anderson,1984
3. The ecology of ‘feral’ and free roving dogs in Baltimore;Beck,1975
4. Some effects of limited exercise on purpose-bred Beagles;Campbell;Am. J. Vet. Res.,1988
5. Analysing the pattern of a sequence of discrete behavioural events;Douglas;Anim. Behav.,1979