00645naa#a2200181#i#4500001001500000005001700015011001400032100004100046102000700087200018800094210007200282215001000354608002700364700002000391700002100411700001900432856001200451EN\\bibl\4699420241104000936.1##a1681-1208##a20070425b2007####ek#y0engy0150####ca##aRU1#aStrontium isotope stratigraphy: Possible applications for age estimation and global correlation of Late Permian carbonates of the Pechishchi type section, Volga RivereJournal article1#aMoscowcGeophysical Center of the Russian Academy of Sciencesd2007##a7 с.##aJournal article2local#1aNurgalievagN G#1aPonomarchukgV A#1aNurgalievgD K4#arjes.ru