For citations:

Shtyrliaeva A.A. PALEOGEOGRAPHIC CONDITIONS OF FORMATION OF PRODUCTIVE STRATA J1 AND J2 IN THE FIELD ETY-PUROVSKOE (WEST SIBERIA). Oil and Gas Studies. 2015;(2):33-38. (In Russ.) https://doi.org/10.31660/0445-0108-2015-2-33-38