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Betekhtina, O. A. (1967). O rodakh Microdontella Lebedev i Abiella Ragozin iz uglenosnykh otlozheniy Kuzbassa [About the genera Microdontella Lebedev and Abiella Ragozin from coal-bearing sediments of Kuzbass]. In: Ivanovskiy, A. B.; Sokolov, B. S. (Ed.) Novyye dannyye po biostratigrafii devona i verkhnego paleozoya Sibiri [new data on the biostratigraphy of the Devonian and upper Paleozoic of Siberia]. Nauka, Moskva, pp. 48-60, pls. 7-8.
Betekhtina, O. A. (1967). O rodakh Microdontella Lebedev i Abiella Ragozin iz uglenosnykh otlozheniy Kuzbassa [About the genera Microdontella Lebedev and Abiella Ragozin from coal-bearing sediments of Kuzbass]. In: Ivanovskiy, A. B.; Sokolov, B. S. (Ed.) Novyye dannyye po biostratigrafii devona i verkhnego paleozoya Sibiri [new data on the biostratigraphy of the Devonian and upper Paleozoic of Siberia]. Nauka, Moskva, pp. 48-60, pls. 7-8.
