00447naa#a2200157#i#450# EN\\bibl\80833 20240919042537.4 2076-0655 20190325b2019####ek#y0engy0150####ca ENG RU ABSTRACTS OF PAPERS PUBLISHED IN ISSUE Journal article Moscow Individual Entrepreneur Svetlana Vasilievna Samchenko 2019 1 с. Journal article local tsilicates.ru