TY JOUR TI Restriction of freedom of movement in the light of modern russian realities: legal regulation and practice of constitutional legal proceedings KW freedom of movement KW entry KW exit KW restriction KW legal uncertainty KW Constitutional Court KW pandemic KW sanctions JO Vestnik of the St. Petersburg University of the Ministry of Internal Affairs of Russia AU Novopavlovskaya, E.E. PY 2022 IS 2022 PB SAINT-PETERSBURG UNIVERSITY OF THE MINISTRY OF INTERNAL AFFAIRS OF THE RUSSIAN FEDERATION