00736naa#a2200193#i#450# EN\FGKOU VO SPBU MVD ROSSII\bibl\100002 20251004060006.6 2071-8284 20250929b2025####ek#y0engy0150####ca RUS RU Mass murders in educational institutions: determinants and organisation of prevention Journal article St. Petersburg SAINT-PETERSBURG UNIVERSITY OF THE MINISTRY OF INTERNAL AFFAIRS OF THE RUSSIAN FEDERATION 2025 9 с. Journal article local Криминология. Криминалистика. 343.9 RUS Elfimov Pavel Vasilyevich Vinogradova Ol'ga Pavlovna vestnikspbmvd.ru