TY JOUR TI PROBLEMS OF FIRE SAFETY IN BUILDINGS WITH A LARGE NUMBER OF PEOPLE KW fire safety KW crowded buildings KW comprehensive approach JO Bulletin of the Angarsk State Technical University AU Podvarkova, T.A. AU Katul'skiy, Y.N. PY 2025 IS 1 PB Federal State Funded Educational Establishment of Higher Education «Angarsk State Technical University»