00484naa#a2200169#i#450# EN\\bibl\80536 20241212213928.4 2076-0655 20130325b2013####ek#y0engy0150####ca RUS RU The use of outsourcing in the cement industry Journal article Moscow Individual Entrepreneur Svetlana Vasilievna Samchenko 2013 5 с. Journal article local Belimova O A tsilicates.ru