For citations:

Levitskaya atianaladimirovna T.V. T. V. Journal of Petroleum Economy as a Source on the Ecological History of the North of Western Siberia. Surgut State Pedagogical University Bulletin. 2025;(6(99)):22-31. (In Russ.) https://doi.org/10.69571/SSPU.2025.99.6.002