TY JOUR TI PROSPECTS OF DEVELOPMENT AND USE OF UNMANNED AIRCRAFT IN THE MINISTRY OF EMERGENCIES OF RUSSIA KW unmanned aircraft KW the work related to the search of people KW warning the population in emergencies KW work in the area of infection KW monitoring of forest fires KW monitoring of flood area JO Problems of risk management in the technosphere AU Stepanov, R.A. AU Belkin, D.S. AU Perevalov, A.S. PY 2017 IS 2017 PB Saint-Petersburg University of State Fire Service of Emercom of Russia