00603naa#a2200169#i#450# EN\\bibl\40400 20250504135338.7 2078-5356 20200715b2020####ek#y0engy0150####ca RU Extremist community as a form of group extremist activity: issues of theory and practice Journal article Nizhny Novgorod Nizhny Novgorod Academy of the Ministry of the Interior of Russia 2020 5 с. Journal article local Право. Юридические науки. 34 Magnutov Yuriy S. namvd.editorum.ru