00555naa#a2200169#i#450# EN\\bibl\38431 20241109025907.6 2073-5537 20200625b2020####ek#y0engy0150####ca RU Commercial mortgage lending: standardization issues Journal article Astrakhan Astrakhan State Technical University 2020 6 с. Journal article local Экономика. Экономические науки. 33 Ushanov Aleksandr Evgenievich vestnik.astu.org