Voir la notice de l'article provenant de la source eLibrary of Mathematical Institute of the Serbian Academy of Sciences and Arts
@article{PIM_1972_N_S_14_28_a15, author = {J. Prasad}, title = {On {An} {Approximation} {Of} {Function} {And} {Its} {Derivates}}, journal = {Publications de l'Institut Math\'ematique}, pages = {129 }, publisher = {mathdoc}, volume = {_N_S_14}, number = {28}, year = {1972}, url = {http://geodesic.mathdoc.fr/item/PIM_1972_N_S_14_28_a15/} }
J. Prasad. On An Approximation Of Function And Its Derivates. Publications de l'Institut Mathématique, _N_S_14 (1972) no. 28, p. 129 . http://geodesic.mathdoc.fr/item/PIM_1972_N_S_14_28_a15/