@article{1138843799, author = {Izumi, Shin-ichi and Sat\^o, Masako}, title = {Fourier series. X. Rogosinski's lemma}, journal = {Kodai Math. Sem. Rep.}, volume = {8}, number = {1}, year = {1956}, pages = { 164-180}, language = {en}, url = {http://dml.mathdoc.fr/item/1138843799} }
Izumi, Shin-ichi; Satô, Masako. Fourier series. X. Rogosinski's lemma. Kodai Math. Sem. Rep., Tome 8 (1956) no. 1, pp. 164-180. http://gdmltest.u-ga.fr/item/1138843799/