Zima, J. Karyotypic variation in mammals of the Balkan Peninsula. In: GRIFFITHS, H. I., KRYŠTUFEK, B., REED, J. M., eds. Balkan biodiversity: pattern and process in the European hotspot. Dordrecht: Kluwer Academic, 2004, s. 109-133. ISBN 1-4020-2853-9.