00651naa#a2200217#i#450# EN\\bibl\46558 20241127184846.3 1681-1208 20210225b2021####ek#y0engy0150####ca ENG RU Comparison of methane distribution in bottom sediments of shallow lagoons of the Baltic and Black Seas Journal article Moscow Geophysical Center of the Russian Academy of Sciences 2021 0 с. Journal article local Ulyanova M Malakhova T Evtushenko D Artemov Yu Egorov V rjes.ru