COMPOSITION ISOTOPIQUE DE L'HELIUM DANS QUELQUES ROCHES.GERLING EK; MAMYRIN BA; TOLSTIKHIN IN et al.1971; GEOKHIMIJA; SUN; 1971, NUM. 0010, P. 1209 A 1217Miscellaneous

COMPOSITION ISOTOPIQUE DE L'HELIUM DANS QUELQUES ROCHES.GERLING EK; MAMYRIN BA; TOLSTIKHIN IN et al.1971; GEOKHIMIJA; SUN; 1971, NUM. 0010, P. 1209 A 1217Miscellaneous

DETERMINATION OF THE EARTH'S AGE FROM THE OLDEST MINERALS AND ROCKS.GERLING EK; SHUKOLJUKOV JU A; KOL'TSOVA TV et al.1966; CHEMISTRY.OF.THE.EARTH'S.CRUST.; 1966, VOL. 1, P. 388 A 395Miscellaneous