1. A. I. Kiritchkova and V. A. Samylina, “On Distinctive Leaf Characters in Some Mesozoic Ginkgoales and Szekanowskiales,” Bot. Zh. 64(11), 1529–1538 (1979).
2. V. A. Krassilov, Mesozoic Flora of the Bureya River (Ginkgoales and Szekanowskiales) (Nauka, Moscow, 1972) [in Russian].
3. V. A. Krassilov, “The Early Cretaceous Flora of Mongolia,” Palaeontographica Abt. B 181, 1–43 (1982).
4. Micromycetes of Soils (Naukova Dumka, Kiev, 1984) [in Russian].
5. Paleopalynology: Vol. 1. Proc. Vses. Geol. Inst., New Ser., Issue 141 (Nedra, Leningrad, 1966) [in Russian].