00577naa#a2200193#i#4500001001500000005001700015011001400032100004100046101000800087102000700095200010100102210007200203215001000275608002700285700001800312700001800330700001700348856001800365EN\\bibl\8066120241121181024.4##a2076-0655##a20140925b2014####ek#y0engy0150####ca0#aRUS##aRU1#aSubstandard sand in the technology of glass materials for construction purposeseJournal article1#aMoscowcIndividual Entrepreneur Svetlana Vasilievna Samchenkod2014##a3 с.##aJournal article2local#1aMin’kogN I#1aYakh’yagM #1aKemenovgS A4#atsilicates.ru