Dyuzhikova,Y.Y. et al. (1968)
More information on the Lower Cretaceous in the northwest central Siberian Plateau. [ Novyye dannyye o Nizhnemelovykh otlozheniyakh Severo-Zapadnoy Chasti Sredne-Sibirskogo Ploshogor"Ya.(Agi Translation Vol.182 Pages 91-93) ] Doklady Akademii Nauk SSSR
Vol. 182 # 5 P. 1161- 1163