TY JOUR TI THEORETICAL AND LEGAL ASPECTS OF THE SPECIFICS OF CHALLENGING REGULATORY LEGAL ACTS OF PUBLIC ADMINISTRATION BODIES REGULATING RELATIONS IN THE SOCIO-CULTURAL SPHERE KW Russia KW judicial system KW administrative and legal acts KW public administration bodies KW socio-cultural sphere KW courts of general jurisdiction KW institution of challenging regulatory and legal acts JO LAW. SAFETY. EMERGENCY SITUATIONS AU Kainov, V.I. PY 2026 IS 2026 PB Saint-Petersburg University of State Fire Service of Emercom of Russia