1. Animal Welfare Regulations, 2005. Animal Welfare Act, 7 U.S.C. 9 CFR Chapter 1, Subchapter A, Parts 1–4.
2. Reversible immobilization and anesthesia of free-ranging brown bears (Ursus arctos) with medetomidine–tiletamine–zolazepam and atipamezole: A review of 575 captures;Arnemo,2001
3. Aujeszky's disease in captive bears;Banks;Vet Rec,1999
4. Captive ursids: results and selected findings of a multi-institutional survey;Blake,2002
5. Veterinary issues related to bears (Ursidae);Bourne;Intl Zoo Yb,2010