EXPERIMENTAL PRODUCTION OF GAS CONDENSATE FROM BITUMINOUS ROCK IN CONNECTION WITH PROBLEMS OF THE ORIGIN OF GAS CONDENSATES IN THE LOWER CAMBRIAN SEDIMENTS OF THE IRKUTSK AMPHITHEATRE.BOGORODICKAJA NI; BELJAEVA LS.1968; GEOKHIMIJA-S.S.S.R.; 1968, NUM. 0009, P. 1112 A 1119Miscellaneous

ON THE NATURE OF NONCARBONATE CARBON OF IGNEOUS ROCKS.BELJAEVA LS; PARPAROVA GM.1969; AKAD. NAUK S.S.S.R., SIB. OTD., GEOL. GEOFIZ ; SUN; 1969(1), NUM. 0001, P. 22 A 27Miscellaneous