00613naa#a2200181#i#450# EN\\bibl\44185 20241125101946.1 2542-1840 20210519b2021####ek#y0engy0150####ca RU Professional Representation in Civil and Administrative Legal Proceedings in the Russian Federation Journal article Kemerovo Kemerovo State University 2021 7 с. Journal article local Право. Юридические науки. 34 Zvyagina Natalia Sergeevna Baev Viacheslav Dzhurovich jsocnet.ru