00597naa#a2200181#i#450# EN\\bibl\67944 20241222193426.7 2218-130X 20130325b2013####ek#y0engy0150####ca RUS RU OBSERVANCE OF PRINCIPLES OF REAR MAINTENCE. THE BASIC WAY OF INCREASE OF ECONOMIC SAFETY OF BACK Journal article Saint-Petersburg Saint-Petersburg University of State Fire Service of Emercom of Russia 2013 5 с. Journal article local Bardulin E N Novosyolov R V journals.igps.ru