Isaev, V.I., and A.A. Iskorkina. “Mesozoic-Cenozoic Course of Temperatures on the earth’s Surface and Geothermal Regime of the Jurassic Oil Source Deposits (southern Paleoclimatic Zone of West Siberia)”. Geofizicheskiy Zhurnal 36, no. 5 (October 1, 2014): 64–80. Accessed May 18, 2022. http://journals.uran.ua/geofizicheskiy/article/view/111569.