@article{oai:soar-ir.repo.nii.ac.jp:00017264,
 author = {SAKURA,  Naoo},
 journal = {Journal of the Faculty of Liberal Arts and Science, Shinshu University. Part 2, Natural science},
 month = {Dec},
 note = {Article, Journal of the Faculty of Liberal Arts and Science, Shinshu University. Part 2, Natural science 15: 1-3(1965)},
 pages = {1--3},
 title = {On Some Properties of N-sided Skew Polygon},
 volume = {15},
 year = {1965}
}