@article{oai:soar-ir.repo.nii.ac.jp:00013025,
 author = {IWAI,  Kazuo},
 journal = {信州大学工学部紀要},
 month = {Jul},
 note = {Article, 信州大学工学部紀要 28: 7-14 (1970)},
 pages = {7--14},
 title = {On some Theorems concerning the Summability |N, Pn|},
 volume = {28},
 year = {1970}
}