@article{oai:soar-ir.repo.nii.ac.jp:00017283,
 author = {SAITO,  Shiroshi},
 journal = {Journal of the Faculty of Liberal Arts and Science, Shinshu University. Part 2, Natural science},
 month = {Nov},
 note = {Article, Journal of the Faculty of Liberal Arts and Science, Shinshu University. Part 2, Natural science 12: 14-19(1962)},
 pages = {14--19},
 title = {Note on φ-notions},
 volume = {12},
 year = {1962}
}