@article{03907081, title = {On the strong matrix summability of derived Fourier series.}, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {8}, year = {1985}, pages = {367-372}, doi = {10.1155/S0161171285000382}, zbl = {0568.42005}, language = {en}, url = {http://dml.mathdoc.fr/item/03907081} }
Mishra, K.N.; Srivastava, R.S.L. On the strong matrix summability of derived Fourier series.. International Journal of Mathematics and Mathematical Sciences, Tome 8 (1985) pp. 367-372. doi : 10.1155/S0161171285000382. http://gdmltest.u-ga.fr/item/03907081/