TY JOUR TI TRENDS IN THE DEVELOPMENT OF THE UNITARY MODEL OF THE STATE TERRITORIAL STRUCTURE IN MODERN EUROPE KW state structure KW unitary states KW administrative-territorial division KW administrative units KW decentralization KW regions JO Society, law, statehood: retrospective and perspective AU Chernova, E.R. PY 2022 IS 2022 PB Ufa Law Institute of the Ministry of Internal Affairs of Russia