00537naa#a2200157#i#450# EN\\bibl\47078 20240503151827.5 1681-1208 20030225b2003####ek#y0engy0150####ca RU Helium isotopes in the ground fluids of the Baikal Rift and its surroundings: Contribution to continental rifting geodynamics Journal article Moscow Geophysical Center of the Russian Academy of Sciences 2003 21 с. Journal article local Polyak B G rjes.ru