00524naa#a2200205#i#450# EN\\bibl\80801 20241123133937.6 2076-0655 20180625b2018####ek#y0engy0150####ca RUS RU Journal article Moscow Individual Entrepreneur Svetlana Vasilievna Samchenko 2018 3 с. Journal article local Guseva T V Begak M V Potapova E N Molchanova Y P tsilicates.ru