00537naa#a2200181#i#450# EN\RIOR\bibl\6235 20241121204304.4 2409-6024 20150302b2015####ek#y0engy0150####ca RUS RU Mathematical methods of decision-making in low-volume and piecework production enterprises Journal article Moscow Publishing Center RIOR 2015 9 с. Journal article local Kochkina Elena Radkovskaya Elena rusjm.ru