Barkova,M.V. (1968)
Palynological basis for the Late Pliocene age of the deposits of the northern part of the Yano-Indigirsk Lowlands [ Palinologicheskoe Obosnovanie Pozdnepliotsenovogo Vozraasta otlozhenii Severnoi Chasti Yano-Indigirstoi Nizmennosti ] Uchenye Zapiski(Science Notes), Paleontologiya i Biostratigrafiya (NIIGA) Ministerstvo Geologii SSR
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