Tscheremissinova, E.A. (1956). Novye diatomovye iz oligotsena Ukrainy. Diatomeae novae ex Oligocaeno Ucrainae [New diatoms from the Oligocene of the Ukraine]. Botaniceskie materialy otdela sporovyh rastenij Botanicheskogo instituta imeni V.L. Komarova, Akademii Nauk S.S.S.R. Notulae systematicae e sectione cryptogamica instituti botanici nomine V.L. Komarovi academiae scientiarum URSS, 11: 62-64