00521naa#a2200169#i#450# EN\\bibl\15160 20240520113838.1 2071-2367 20161229b2016####ek#y0engy0150####ca RUS RU Public-private partnership at the present stage of legal regulation as the form of optimization of public expenses Journal article Moscow RANEPA 2016 3 с. Journal article local Shchukina Tatyana Vladimirovna naukaru.ru