TY JOUR TI About the public danger of extremist crimes related to the public dissemination of deliberately false information KW extremist activity KW crime KW public danger KW criminalization KW false information KW publicity KW criminal liability JO Bulletin of the Kazan Law Institute of MIA Russia AU Petryanin, A.V. AU Pshenichnov, I.M. PY 2023 IS 14 PB Kazan law institute Ministry of Internal Affairs Russian Federation