00611naa#a2200169#i#450# EN\\bibl\59044 20240717114802.3 2312-3184 20181225b2018####ek#y0engy0150####ca RUS RU KNOWLEDGE OF THE FEATURES OF EXTREMIST IDEOLOGY SUPPORTED BY APPROPRIATE YOUTH INFORMAL GROUPS AS A BASIS FOR INVESTIGATION OF EXTREMIST CRIMES Journal article Irkutsk East Siberian institute of the Ministry of Internal Affairs of the Russian Federation 2018 4 с. Journal article local KUZNETSOVA M O kvsz.ru