At: Ak̄uatãi abotanikatã bah̦ča ausumţaķua, 1952, 7 By: Kolakovsky A. A.
bookAt: Mater. Stratigr. Zap.-Sib. Ravn., Tomsk, Izdatel'stvo Tomskogo Gosudarsvennogo Universiteta By: Nikitin P. A.
bookAt: Paleokarpol. Issled. Kajnoz., Minsk, Nauka i tekhnika By: Jakubovskaja T. V.
journalAt: Doklady Akademii Nauk SSSR, 61, 1 By: Nikitin P. A.
bookAt: Pliots. Chetvert. Fl. Voronezh. Obl., Moscow & Leningrad, Izdateľstvo Akademii Nauk SSSR By: Nikitin P. A.
journalAt: Botanicheskii Zhurnal, 1952, 37, 6 By: Dorofeev P. I.
journalAt: Geologie, 12, 7 By: Mai D. H., Majewski J., Unger K. P.
journalAt: Mitteilungen des Naturwissenschaftlichen Vereines für Steiermark, 74 By: Rössler W.
journalAt: Botanicheskii Zhurnal, 96, 7 By: Vikulin S. V.
journalAt: Doklady Akademii nauk Belorusskoi SSR, 17, 7 By: Dorofeev P. I.