Reference Base Repeated chemical immobilization of a captive greater one...
Atkinson, M.W.; Hull, B.; Gandolf, A.R.; Blumer, E.S., 2002. Repeated chemical immobilization of a captive greater one-horned rhinoceros (Rhinoceros unicornis), using combinations of etorphine, detomidine, and ketamine. Journal of Zoo and Wildlife Medicine 33 (2): 157-162, tables 1-2