@article{oai:soar-ir.repo.nii.ac.jp:00012793, author = {OKUYAMA, Yasuo}, journal = {信州大学工学部紀要}, month = {Feb}, note = {Article, 信州大学工学部紀要 70: 1-8 (1992)}, pages = {1--8}, title = {On contraction of Fourier series}, volume = {70}, year = {1992} }