00528naa#a2200157#i#450# EN\\bibl\47137 20250216164955.7 1681-1208 20000925b2000####ek#y0engy0150####ca RU Helium isotopes in the Baikal rift underground fluids and its framing to the geodynamics of continental rift genesis Journal article Moscow Geophysical Center of the Russian Academy of Sciences 2000 24 с. Journal article local Polyak B G rjes.ru