Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) WOOLMER T. J.,Analysis of the Yokeless And Segmented Armature Machine,Proc. 2007 IEEE Int. Electric Machines and Drives Conf. (IEMDC'07),,,2007,,,704-708,https://cir.nii.ac.jp/crid/1570291224346526464,