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Khalfin, L. L. (1948). Fauna i stratigrafiya devonskikh otlozheniy Gornogo Altaya [The fauna and stratigraphy of the Devonian deposits of the Altai Mountains]. Izvestiya Tomskogo Politekhnicheskogo Instituta. 65(1): 1-464, 36 plates.
Khalfin, L. L. (1948). Fauna i stratigrafiya devonskikh otlozheniy Gornogo Altaya [The fauna and stratigraphy of the Devonian deposits of the Altai Mountains]. Izvestiya Tomskogo Politekhnicheskogo Instituta. 65(1): 1-464, 36 plates.
