00611naa#a2200193#i#450# EN\\bibl\66414 20250503094147.6 1998-8990 20130325b2013####ek#y0engy0150####ca RUS RU EXPERIMENTAL STUDY ON CARBON RESIDUE ELECTRICAL RESISTANCE OF PVC POLYMERIC MATERIALS Journal article Saint-Petersburg Saint-Petersburg University of State Fire Service of Emercom of Russia 2013 4 с. Journal article local Berov K K Belshina J N Sharapov S V journals.igps.ru