Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) WAKABAYASHI Yoshiaki,Technological Developments and Overseas Expansion of the Railway Propulsion System,The Journal of The Institute of Electrical Engineers of Japan,13405551,The Institute of Electrical Engineers of Japan,2017,137,3,145-148,https://cir.nii.ac.jp/crid/1390001204994517760,https://doi.org/10.1541/ieejjournal.137.145