1. Hair structure as a generic character in bats;Benedict F. A.;Univ. Calif. Pubis Zool.,1957
2. A study of the structure of feathers, with reference to their taxonomic significance;Chandler A. C.;Univ. Calif. Pubis Zool.,1916
3. Note sur la structure microscopique des plumes;Clément C.;Bull. Soc. zool. Fr.,1876
4. Sections Aid in Identifying Hair