TY JOUR TI ABOUT SOME METHODICAL APPROACHES TO KATEGORIROVANY OF CRUCIAL OBJECTS KW regulatory legal and methodical base KW criteria of reference of objects to various categories KW crucial objects KW a technique of reference of objects to category crucial JO Problems of risk management in the technosphere AU Slomyanskiy, V.P. AU Glebov, V.Y. AU Galkin, R.N. PY 2013 IS 2013 PB Saint-Petersburg University of State Fire Service of Emercom of Russia