00644naa#a2200193#i#4500001002100000005001700021011001400038100004100052101000800093102000700101200017600108210005100284215001000335608002700345700001700372700001800389700002800407856001500435EN\INFRA-M\bibl\306520241129045249.5##a2075-4094##a20141105b2014####ek#y0engy0150####ca0#aRUS##aRU1#aChemical composition and biological activity of sapropel in the Orenburg region (V. Sol-Iletsk), genetic link with the composition of the sapropel formerseJournal article1#aMoscowcINFRA-M Academic Publishing LLC.d2014##a7 с.##aJournal article2local#1aFridzongK. #1aPlatonovgV. #1aKhadartsevgAleksandr  4#anaukaru.ru