00517naa#a2200157#i#450# EN\\bibl\51117 20240221035314.3 2542-1840 20220621b2022####ek#y0engy0150####ca RU Concept and Correlation of the Principles of Proper and Specific Performance of Civil Obligations Journal article Kemerovo Kemerovo State University 2022 8 с. Journal article local Senotrusova Evgeniya Mihaylovna vestnik-hss.kemsu.ru