00542naa#a2200181#i#450# EN\\bibl\68688 20241219151522.4 2307-7476 20160625b2016####ek#y0engy0150####ca RUS RU THE ISSUE OF SECURITY CROSSINGS ON THE ICE Journal article Saint-Petersburg Saint-Petersburg University of State Fire Service of Emercom of Russia 2016 5 с. Journal article local Grashchenko E A Ivanov A N journals.igps.ru