00625naa#a2200181#i#450# EN\INFRA-M\bibl\42870 /en/manage/index 20250620001119.5 2587-6295 20210326b2021####ek#y0engy0150####ca RU Necessary knowledge for students about countering extremism (textbook «The Policy of countering extremism» edited by A. P. Koshkin Journal article Moscow INFRA-M Academic Publishing LLC. 2021 6 с. Journal article local Политика. 32 Matyuhin A. V. fht.editorum.ru /en/manage/index