@article{oai:tus.repo.nii.ac.jp:00002167,
 author = {小倉, 金之助 and Ogura, Kinnosuke},
 journal = {東北数學雜誌, Tohoku Mathematical Journal, First Series},
 month = {},
 pages = {104--109},
 title = {Some Theorems in the Geometry of Oriented Circles in a Plane},
 volume = {3},
 year = {1913},
 yomi = {オグラ, キンノスケ}
}