Dibner,A.F. (1960)
Late Paleozoic spore and pollen complexes in the North of the Siberian Platform and their stratigraphic significance. [ Sporovo-pyltsevye kompleksy verkhnepaleozoyskikh otlozheniy Severa Sibirskoy Platofrmy i Ikh stratigraficheskoe znachene. ] Mezhdynarodnyi Geologicheskii Kongress,21st Sessiya 1960, Doklady Sovetskikh Geologov; Nauka, Moscow,Russia.
P. 205- 210