Candidate dissertation
Koval Vadym Petrovich. Increase of energy efficiency of light sources with the coiled tungsten elements
: к.т.н. :
spec.. 05.09.07 - Світлотехніка та джерела світла :
presented. 2009-05-28; popup.evolution: .;
Ternopil Ivan Pul'uj State Technical University. – ,
0409U002792.
Updated: 2026-10-20
