00567naa#a2200193#i#4500001001500000005001700015011001400032100004100046101000800087102000700095200008700102210007200189215001000261608002700271700001800298700001800316700002100334856001800355EN\\bibl\8073520241123150235.6##a2076-0655##a20160925b2016####ek#y0engy0150####ca0#aRUS##aRU1#aInfluence of impurities in the quartz-feldspar sand glass qualityeJournal article1#aMoscowcIndividual Entrepreneur Svetlana Vasilievna Samchenkod2016##a3 с.##aJournal article2local#1aMin’kogN I#1aYakh’yagM #1aDobrinskayagO A4#atsilicates.ru