2009 Gypaetus barbatus (in greek).

Xirouchakis, S. (2009) Gypaetus barbatus (in greek). In A. Legakis, & P. Maragou (Eds.), The Red Data Book of the Endangered Animals of Greece (in greek). (pp. 248-249). Athens: Greek Zoological Society ISBN: 978-960-85298-8-5