GEOLOGICAL-STRUCTURAL-GEOCHEMICAL FEATURES OF OIL SHALE AND HYDROCARBON DEPOSITS FORMATION OF BOLTYSH IMPACT STRUCTURE за авторством Bahriy, I.D., Pochtarenko, V.I., Dubosarskyi, V.R., Yantsevych, O.O., Semenyuk, V.G., Hryha, N.V, Malyshev, O.N., Gaphych, I.P.