00638naa#a2200169#i#450# EN\\bibl\66509 20241124215926.7 1998-8990 20140325b2014####ek#y0engy0150####ca RUS RU METHODS OF THE THEORY OF MASS SERVICE AND NEED OF IMITATING EXPERIMENTS IN THE COURSE OF MAINTENANCE AND REPAIR OF MEANS OF INDIVIDUAL PROTECTION OF RESPIRATORY ORGANS Journal article Saint-Petersburg Saint-Petersburg University of State Fire Service of Emercom of Russia 2014 3 с. Journal article local Polin’ko S V journals.igps.ru