00535naa#a2200169#i#450# EN\\bibl\68679 20250406165602.7 2307-7476 20160325b2016####ek#y0engy0150####ca RUS RU MULTIFRACTAL ANALYSIS OF SEMICONDUCTOR LIGHT-EMITTING STRUCTURES Journal article Saint-Petersburg Saint-Petersburg University of State Fire Service of Emercom of Russia 2016 6 с. Journal article local Kartashova A P journals.igps.ru