TY JOUR TI PRESERVING ECOLOGICAL EQUILIBRIUM IN THE ARCTIC IN ASPECT OF ACTIVITIES OF EMERCOM OF RUSSIA KW special equipment for use in the tundra JO NATURAL AND MAN-MADE RISKS (PHYSICO-MATHEMATICAL AND APPLIED ASPECTS) AU Konnova, L.A. AU Papyrin, V.V. AU Rudnev, E.V. PY 2017 IS 2017 PB Saint-Petersburg University of State Fire Service of Emercom of Russia