00584naa#a2200193#i#450# EN\\bibl\66976 20250420042017.7 1998-8990 20181225b2018####ek#y0engy0150####ca RUS RU ENSURE SAFETY MEASURES DURING MAINTENANCE OF MAN-MADE OBJECTS Journal article Saint-Petersburg Saint-Petersburg University of State Fire Service of Emercom of Russia 2018 5 с. Journal article local Troyanov O M Reva Yu V Rybin O A journals.igps.ru