At: Bulletin of the Torrey Botanical Club, 1969, 96, 3 By: Gensel P. G., Kasper A. E., Andrews H. N.
journalAt: Doklady Akademii Nauk SSSR, 142, 2 By: Gayvoronsky V. G.
journalAt: Proceedings of the National Institute of Sciences of India, 15, 2 By: Chowdhury K. A., Tandan K. N.
journalAt: Sovetskaja Botanika, 1941, 5–6 By: Brick M. I.
journalAt: Sbornik statej po paleontologii i biostratigrafii, 14 By: Vassilevskaja N. D.
journalAt: Pollen et Spores, 1987, 29, 4 By: Fenton J. P. G., Riding J. B.
journalAt: Byulleten’ Moskovskogo Obshchestva Ispytatelei Prirody, Otdel, Otdel geologicheskii, 23, 2 By: Reitlinger E. A.
journalAt: Doklady Akademii Nauk SSSR, 105, 2 By: Vologdin A. G.
journalAt: Byulleten’ Moskovskogo Obshchestva Ispytatelei Prirody, Otdel, Otdel geologicheskii, 73, 5 By: Korde K. B.
bookAt: Vopr. Geol. Azii, Moscow, Izdateľstvo Akademii Nauk SSSR, 1 By: Korde K. B.