Grivas, K., Ioannidis, G., Lymberakis, P., Probonas, M. (2002) Mountain areas: problems and management proposals (in Greek). Publication for the Program: LIFE-NATURA 1998 “Conservation – Protection of the Bearded Vulture (Gypaetus barbatus) in Greece, B4-3200/98/444”., (pp.32.), Natural History Museum of Crete, University of Crete, Heraklion, ISBN: 960-367-012-Χ