@article{1138833877, author = {Udagawa, Masatomo}, title = {On lacunary non-harmonic trigonometric series}, journal = {Kodai Math. Sem. Rep.}, volume = {2}, number = {1-2}, year = {1950}, pages = { 17-20}, language = {en}, url = {http://dml.mathdoc.fr/item/1138833877} }
Udagawa, Masatomo. On lacunary non-harmonic trigonometric series. Kodai Math. Sem. Rep., Tome 2 (1950) no. 1-2, pp. 17-20. http://gdmltest.u-ga.fr/item/1138833877/