@article{oai:soar-ir.repo.nii.ac.jp:00013035,
 author = {IWAI,  Kazuo},
 journal = {信州大学工学部紀要},
 month = {Dec},
 note = {Article, 信州大学工学部紀要 27: 1-8 (1969)},
 pages = {1--8},
 title = {On the Summability |N, Pn| of a Fourier Series},
 volume = {27},
 year = {1969}
}