Nasr Esfahani, S., M. Delshad, and M. Tavakoli. “A New Family of Soft Single Switched DC-DC Converters With Lossless Passive Snubber”. Majlesi Journal of Electrical Engineering, Vol. 14, no. 2, June 2020, pp. 51-59, http://mjee.iaumajlesi.ac.ir/index/index.php/ee/article/view/3587.