00556naa#a2200181#i#450# EN\NORMA\bibl\15574 /en/manage/index 20240921170407.6 1605-6590 20170228b2017####ek#y0engy0150####ca RUS RU Freedom and Arbitrariness as Elements of Contractual Regulation of Public Relations Journal article Moscow Legal publishing house Norm 2017 0 с. Journal article local Bogdanov Evgeniy test.editorum.ru /en/manage/index