00681naa#a2200169#i#450# EN\\bibl\38632 20240514144203.2 2588-0071 20200705b2020####ek#y0engy0150####ca RU Negative elements of the functioning mechanism of the public procurement contract system, which pose a threat to the economic security of the budget system Journal article Nizhny Novgorod Nizhny Novgorod Academy of the Ministry of the Interior of Russia 2020 6 с. Journal article local Экономика. Экономические науки. 33 Borodin Anton N. namvd.editorum.ru