00614naa#a2200193#i#450# EN\\bibl\66671 20250216211543.7 1998-8990 20150925b2015####ek#y0engy0150####ca RUS RU FIRE-RETARDING COMPOSITIONS WITH THE USE OF VERMICULITE, PERLITE AND FIBER-FILLERS Journal article Saint-Petersburg Saint-Petersburg University of State Fire Service of Emercom of Russia 2015 3 с. Journal article local Terekhin S N Shidlovsky G L Tikhonov Yu M journals.igps.ru