TY JOUR TI FEATURES OF THE USE OF AMPHIBIOUS EQUIPMENT AND EQUIPMENT FOR PARACHUTE-FREE LANDING TO THE EMERGENCY SITE KW amphibious equipment KW trigger kits KW trigger devices KW parachute-free landing JO Problems of risk management in the technosphere AU Shidlovsky, A.L. AU Tarabrin, P.V. AU Toropkin, A.I. AU Sulima, T.G. PY 2024 IS 2024 PB Saint-Petersburg University of State Fire Service of Emercom of Russia