O Nizhnepermskoy Floro Pamira po palinologicheskum dannym.
Reference:
Sivertseva,I.A. (1974)
Lower Permian spores and pollen of the Pamirs. [ O Nizhnepermskoy Floro Pamira po palinologicheskum dannym. ] Mezhdunarodnaya Palinologicheskaya Konferentsiya,3rd,Novosibirsk. 1971, Nauka Moskva. Palinologiya Proterofita I Paleofita. (Palynology of Proterophyte and Paleophyte)
P. 139- 141