00549naa#a2200169#i#450# EN\NORMA\bibl\40823 20250401083451.2 1605-6590 20201124b2020####ek#y0engy0150####ca RU Legal Problems of Transition of Budget Managers to the “Qualified Customer” Model Journal article Moscow Legal publishing house Norm 2020 0 с. Journal article local Право. Юридические науки. 34 Akopyan Oganes naukaru.ru