@article{1178243314, author = {Okuyama, Yasuo}, title = {On contraction of Walsh Fourier series}, journal = {Tohoku Math. J. (2)}, volume = {19}, number = {4}, year = {1967}, pages = { 156-167}, language = {en}, url = {http://dml.mathdoc.fr/item/1178243314} }
Okuyama, Yasuo. On contraction of Walsh Fourier series. Tohoku Math. J. (2), Tome 19 (1967) no. 4, pp. 156-167. http://gdmltest.u-ga.fr/item/1178243314/