00591naa#a2200193#i#450# EN\RIOR\bibl\6235 /en/manage/index 20250127163039.1 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 fht.editorum.ru /en/manage/index