1. Strategies for the reduction of carnivore-livestock conflicts: a review;Linnell;NINA Oppdragsmelding,1996
2. Strategies for carnivore conservation: lessons from contemporary extinctions;Woodroffe,2001
3. Behaviour of carnivores in exploited and controlled populations;Frank,2001
4. L'ours brun;Couturier,1954
5. J.J. Camarra, Suivi de la population d'ours brun des Pyrénées Occidentales Françaises. Rapport annuel 1997. Document interne non publié, ONCFS, 1998