00543naa#a2200157#i#450# EN\\bibl\66004 20250109140124.4 2588-0071 20230630b2023####ek#y0engy0150####ca RU Diagnostics of economic problems of public-private partnership in St. Petersburg Journal article Nizhny Novgorod Nizhny Novgorod Academy of the Ministry of the Interior of Russia 2023 7 с. Journal article local Derkach Viktoriya Aleksandrovna namvd.editorum.ru