Grigoreva,K.N. (1973)
Assay of the paleofloristic division into districts of eastern and south-eastern parts of West-Siberi in Senonian Peiod [ Opyt Paleofloristicheskogo Rayonirovaniya Vostochnoy i Yugo-Vostochnoy Chastey Zapadno-Sibirskoy Nizmennosti Dlyasenonskogo Vremeni. ] Mezhdunarodnaya Palinologicheskaya Konferentsiya,3rd,Novosibirsk. 1971, Nauka Moskva. Palynology of Cenozoic Plants.
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