00670naa#a2200193#i#450# EN\RIOR\bibl\19725 20240505030902.7 2409-5087 20171225b2017####ek#y0engy0150####ca RUS RU Competence of public authorities of subjects of the Russian Federation in a mail service Journal article Moscow Publishing Center RIOR 2017 3 с. Journal article local Административное право. 10.17 grnti Теория государства и права. 10.07 grnti Shevelev Dmitriy Vladimirovich riorpub.com