• Preliminary study on voltage level influence on harmonic current of LED lampsJarkovoi, Marek; Kütt, Lauri16th International Symposium "Topical Problems in the Field of Electrical and Power Engineering. Doctoral School of Energy and Geotechnology III" : Pärnu, Estonia, January 16-21, 20172017 / p. 116-120 : ill http://www.ester.ee/record=b4650094*est