@article{oai:soar-ir.repo.nii.ac.jp:00012909,
 author = {OKUYAMA,  Yasuo},
 journal = {信州大学工学部紀要},
 month = {Dec},
 note = {Article, 信州大学工学部紀要 43: 1-10 (1977)},
 pages = {1--10},
 title = {Approximation Property of Functions and the Absolute Nörlund summability of Fourier Series},
 volume = {43},
 year = {1977}
}