Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) M. Shioya and G. Kimura and S. Inarida and M.H. Ohsato,Resonant Type Five-level PWM inverter Used In Small Scaled Photovoltaic System,Singapore International Conference on Intelligent Control and Instrumentation [Proceedings 1992],,IEEE,2005-08-24,2,,987-991,https://cir.nii.ac.jp/crid/1873398392808146816,https://doi.org/10.1109/sicici.1992.637672