Shatilova,I.I. et al. (1982)
Subdivision of Chaudinian deposits of Western Georgia based on palynology. [ Palinologicheskoe Obosnovanie Vozmozhnosti Deleniya otlozheniy Chaudinskogo Gorizonta Zapadnoy Gruzii. ] INQUA Congress,11th,Questions of Palynology and Paleobotany;Abstracts,Tbilisi,1982
P. 13- 15