00524naa#a2200169#i#450# EN\RIOR\bibl\8093 20250616082645.1 2500-1469 20151029b2015####ek#y0engy0150####ca RUS RU Planning of financial activities of an economic entity within the concept of adaptive system approach Journal article Moscow Publishing Center RIOR 2015 10 с. Journal article local Levchaev Petr Aleksandrovich rusjm.ru