1. Sensory reinforcement and illumination preference in sheep and calves;Baldwin,1981
2. Le logement des veaux de boucherie;Blommaert;Rev. Agric.,1984
3. Code for Interior Lighting;Chartered Institute of Building Services,1984
4. The behaviour of calves under four levels of lighting;Dannenmann;Appl. Anim. Behav. Sci.,1985
5. Untersuchungen zur Serumbakterizidie beim Kalb unter dem Einfluss verschiedener Lichtregime;Dorn;Arch. Exp. Veterinarmed.,1980