@article{oai:soar-ir.repo.nii.ac.jp:00012247,
 author = {ASADA,  AKIRA},
 issue = {1},
 journal = {信州大学理学部紀要},
 month = {Nov},
 note = {Article, 信州大学理学部紀要 6(1): 1-26(1971)},
 pages = {1--26},
 title = {Existence of Some Metrics on Manifolds},
 volume = {6},
 year = {1971}
}