TYPES OF GAS-PRODUCING DEPOSITS = CLASSIFICATION DES GISEMENTS PRODUISANT DU GAZ NATURELYEFREMOVA AG.1981; INT. GEOL. REV.; ISSN 0020-6814; USA; DA. 1981-07; VOL. 23; NO 7; PP. 776-780; BIBL. 9 REF.; 1 TAB. ; ILL.Article

OCCURRENCE OF CRYSTAL HYDRATES OF GASES IN THE SEDIMENTS OF MODERN MARINE BASINS.YEFREMOVA AG; EFREMOVA AG; ZHIZHCHENKO BP et al.sdDOKL. EARTH SCI. SECT.; U.S.A.; DU RUSSE: DOKL. AKAD. NAUK S.S.S.R., S.S.S.R. 1974; 214, NO 5, 1179-1181,1974, VOL. 214, P. 219 A 220Miscellaneous