TY JOUR TI ORIGINS AND FUTURE OF SOLID STATE LIGHTING KW light-emitting diodes KW solid-state lighting KW multifractal analysis KW nanostructural arrangement of the material KW external quantum efficiency JO NATURAL AND MAN-MADE RISKS (PHYSICO-MATHEMATICAL AND APPLIED ASPECTS) AU Kartashova, A.P. PY 2014 IS 2014 PB Saint-Petersburg University of State Fire Service of Emercom of Russia