At: Bulletin of the Central National Museum of Manchoukuo, 3 By: Endô S.
journalAt: Watson's Microscope Record, 40 By: Fuge D. P.
journalAt: Wulfenia, 24 By: Naugolnykh S. V.
journalAt: Journal of the Botanical Research Institute of Texas, 9, 2 By: Poinar G. O., Weigend M., Henning T.
bookAt: Osnovy Paleontol., Moscow, Izdateľstvo Akademii Nauk SSSR, [14] By: Maslov V. P.
bookAt: Osnovy Paleontol., Moscow, Izdateľstvo Akademii Nauk SSSR, [14] By: Vozzhennikova T. F.
journalAt: Trudy Tsentral'nogo nauchno-issledovatel'skogo geologo-razvedochnogo instituta, 105 By: Luber A. A., Waltz I. E.
bookAt: Sist. Metody Izuch. Iskop. Pyl'ts. Spor, Moscow, Izdatel'stvo "Nauka" By: Oshurkova M. V.
journalAt: Doklady Akademii Nauk SSSR, 58, 2 By: Novik E. O.
journalAt: Neues Jahrbuch für Mineralogie, Geologie und Paläontologie, 1901, 1, 1 By: von Huene F.