1. A survey of African and Asian elephant diets and measured body dimensions compared to their estimated nutrient requirements;Ange;Proc Nutr Adv Gr,2001
2. The formulation of a beet pulp–based pelleted food for captive wild ruminants and preliminary experiences;Berndt;Proc Eur Assoc Zoo Wildl Vet,2004
3. Gastrointestinal linear foreign bodies in silver leaf langurs;Calle;J Zoo Wildl Med,1995
4. Castell J: Investigations on feeding and digestive physiology of the black rhinoceros [German], Munich, 2005, University of Munich (doctoral thesis).
5. Feeding practice in moose husbandry [German];Clauss,2000