00589naa#a2200193#i#450# EN\\bibl\12102 20260408032915.3 1609-3178 20160624b2016####ek#y0engy0150####ca RUS RU Quality and Reliability Analysis of Medium and High Voltage Cable Insulation using Light Microscopy Methods Journal article Saint-Petersburg LLC SVEN 2016 5 с. Journal article local Fedorova Viktoriya Ovsienko Vladimir Shuvalov Mikhail zh-szf.ru