TY JOUR TI DERADICALIZATION OF PRISONERS IN THE PRISONS OF NORDIC COUNTRIES KW penitentiary systems KW counteraction to extremism KW programs for the de-radicalization of prisoners JO Bulletin of the Kazan Law Institute of MIA Russia AU Yavorskii, M.A. PY 2017 IS 8 PB Kazan law institute Ministry of Internal Affairs Russian Federation