00736naa#a2200205#i#450# EN\\bibl\20860 /en/manage/index 20250221101106.5 1993-7768 20180504b2018####ek#y0engy0150####ca RUS RU Econometric forecasting of the influence of production factors on the cost price reduction of a product Journal article CHERKIZOVO Russian State University of Tourism and Service 2018 10 с. Journal article local Туристско-экскурсионное обслуживание. 71.37 grnti Zaernyuk Viktor Filimonova Nadezhda N. test.editorum.ru /en/manage/index