1. Loess Sediments of the Central and Eastern Caucasian Forelands;Balaev,1964
2. Pollen records, late Ple-istocene/Southern Europe;de Beaulieu,2007
3. Vegetation Evolution in Europe during the Different Interglacials: a Great Coherence;de Beaulieu,2000
4. Paleogeography of the Pleistocene of the Central and Southern Areas of the Russian Plain (By Palynological Data);Bolikhovskaya,1975
5. Palynology of the loesses and fossil soils of the Russian Plain;Bolikhovskaya,1976