At: Iskop. Tsvetk. Rast. SSSR, Leningrad, Izdatel'stvo Nauka, Leningradskoe otdelenie, 2 By: Dorofeev P. I.
journalAt: Review of Palaeobotany and Palynology, 168, 1 By: van der Ham R. W. J. M., van Konijnenburg-van Cittert J. H. A., Kieft B. K., Sachs A. W.
journalAt: Palaeobotanist, 55, 1-3 By: Naugolnykh S. V., Orlova O. A.
journalAt: Acta botanica Academiae Scientiarum Hungaricae, 14, 1–2 By: Nagy E.
journalAt: Arctoa, 20 By: Ignatov M. S., Perkovsky E. E.
journalAt: Arctoa, 28, 1 By: Ignatov M. S., Lamkowski P., Ignatova E. A., Perkovsky E. E.
journalAt: Paleontological Journal, 53, 10 By: Ignatov M. S., Lamkowski P., Ignatova E. A., Kulikovskiy M. S., Mamontov Yu. S., Vasilenko D. V.
journalAt: Arctoa, 22 By: Ignatov M. S., Perkovsky E. E.
journalAt: Arctoa, 25 By: Ignatov M. S., Schäfer-Verwimp A., Perkovsky E. E., Heinrichs J.
journalAt: Arctoa, 22 By: Ignatov M. S., Perkovsky E. E.