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@article{MZ_1962__80_170115, author = {R.P. Boas jr.}, title = {On sine series with positive coefficients.}, journal = {Mathematische Zeitschrift}, pages = {382--383}, publisher = {mathdoc}, volume = {80}, year = {1962}, zbl = {0107.05201}, url = {http://geodesic.mathdoc.fr/item/MZ_1962__80_170115/} }
R.P. Boas jr. On sine series with positive coefficients.. Mathematische Zeitschrift, Tome 80 (1962), pp. 382-383. http://geodesic.mathdoc.fr/item/MZ_1962__80_170115/