Faddeeva,I.Z. (1963)
Palynological characteristics of Lower Mesozoic Coal deposits of Kazakhstan. (In: History of Lower Mesozoic Coal accumulation in Kazakhstan. Part 3) [ Palinologicheshaya Kharacteristika Nizhnemezozoic Kikh Uglenoshykh otlozhenii Kazakhstana(In-Istoriya Nizhnemezozoiskogo Uglenakopleniya v Kazakastane ] Trudy Laboratoriya Geologii Uglya,Akademiya Nauk SSR
Vol. 20 P. 143- 185