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Baranov, V. K.; Betekhtina, O. A.; Budnikov, V. I. (1969). O verkhnepalezoyskoy uglenosnoy formatsii severo-zapadnoy chasti tungusskoy sineklizy [On the Upper Paleozoic coal-bearing formation of the northwestern part of the Tunguska syneclise]. Trudy Instituta geologii i geofiziki SO AN SSSR. 68: 102–119.
Baranov, V. K.; Betekhtina, O. A.; Budnikov, V. I. (1969). O verkhnepalezoyskoy uglenosnoy formatsii severo-zapadnoy chasti tungusskoy sineklizy [On the Upper Paleozoic coal-bearing formation of the northwestern part of the Tunguska syneclise]. Trudy Instituta geologii i geofiziki SO AN SSSR. 68: 102–119.