@article{oai:kitami-it.repo.nii.ac.jp:00006214, author = {Nobuo, MIZOGUCHI and Shigeo, KATO}, issue = {2}, journal = {北見工業大学研究報告}, month = {Mar}, note = {application/pdf}, pages = {319--325}, title = {Umbilical points on subspaces of Finslerian and Minkowskian spaces}, volume = {2}, year = {1968} }