Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Gotou Makoto and Kobayashi Kazutsugu,An Analysis of the Cogging Torque of a DC Motor and a New Reducing Technique,IEEJ Transactions on Power and Energy,0385-4213,The Institute of Electrical Engineers of Japan,1983,103,11,711-718,https://cir.nii.ac.jp/crid/1390001204602189184,https://doi.org/10.1541/ieejpes1972.103.711