TY JOUR TI THE ISSUE OF THE SPECIFIC FEATURES OF TERRORISM AND THE DEFINITION OF ITS CONCEPT KW terrorism KW crime KW etymology KW international legal documents KW public danger KW counteraction to terrorism KW violence KW extremism KW political violence KW foreign scientists JO Bulletin of the Kazan Law Institute of MIA Russia AU Kanunnikova, N.. PY 2017 IS 8 PB Kazan law institute Ministry of Internal Affairs Russian Federation