@conference {Stanimir_Valtchev23921528,
	title = {Some Properties of the Transistor Series Resonant Power Convertors},
	booktitle = {The Day of the Radio Conference, 5{\textendash}6 May 1989, Sofia},
	year = {1989},
	note = {n/a},
	abstract = {n/a},
	author = {Stanimir Valtchev}
}
