Bekenov A.B. (2002). About the IUCN categories and criteria for animals inclusion in Red Data Books and lists (project INTAS 99-1483).
Abstract: Uncia uncia in Kazakhstan is defined as EN C 2a(i); D1. The International Red List (2000) attributes this species to EN C 2a, which is an example of concurrence in the assessments at regional and global levels.