00639naa#a2200193#i#4500001001500000005001700015011001400032100004100046102000700087200015800094210007200252215001100324608002700335700001900362700001800381700001800399700001600417856001200433EN\\bibl\4708920240506193438.1##a1681-1208##a20030825b2003####ek#y0engy0150####ca##aRU1#aThe origin of black shale-hosted Mn deposits  in Paratethyan basins: Constraints from geological events at the Eocene/Oligocene boundaryeJournal article1#aMoscowcGeophysical Center of the Russian Academy of Sciencesd2003##a17 с.##aJournal article2local#1aVarentsovgI M#1aMuzyliovgN G#1aNikolaevgV G#1aStupingS I4#arjes.ru