Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) O. Tsukamoto and J. Chen,Attractive type magnetic levitation system with 3 phi AC electro-magnets,"Proceedings IECON '91: 1991 International Conference on Industrial Electronics, Control and Instrumentation",,IEEE,2002-12-09,,,,https://cir.nii.ac.jp/crid/1873398392817365760,https://doi.org/10.1109/iecon.1991.239189