@article{04194405, title = {A theorem for Fourier coefficients of a function of class }, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {13}, year = {1990}, pages = {721-726}, doi = {10.1155/S0161171290000977}, zbl = {0724.42006}, language = {en}, url = {http://dml.mathdoc.fr/item/04194405} }
Gaur, A.K. A theorem for Fourier coefficients of a function of class . International Journal of Mathematics and Mathematical Sciences, Tome 13 (1990) pp. 721-726. doi : 10.1155/S0161171290000977. http://gdmltest.u-ga.fr/item/04194405/