TY JOUR TI WAYS OF THE DECISION OF THE PROBLEM OF SAFETY AT TRANSPORTATION OF AMMONIA BY MOTOR TRANSPORT KW chemically dangerous object KW deflagration burning KW gas-vapour-air a mix JO Problems of risk management in the technosphere AU Savchuk, O.N. PY 2013 IS 2013 PB Saint-Petersburg University of State Fire Service of Emercom of Russia