00572naa#a2200181#i#450# EN\\bibl\65458 20241123014625.6 2227-1171 20170625b2017####ek#y0engy0150####ca RUS RU Counteraction to the activities of extremist organizations and communities: actual problems of theory and practice Journal article Kazan Kazan law institute Ministry of Internal Affairs Russian Federation 2017 4 с. Journal article local vestnikkui.ru