@article{1077473863, author = {Schiffer, Menahem}, title = {The kernel function of an orthonormal system}, journal = {Duke Math. J.}, volume = {13}, number = {1}, year = {1946}, pages = { 529-540}, language = {en}, url = {http://dml.mathdoc.fr/item/1077473863} }
Schiffer, Menahem. The kernel function of an orthonormal system. Duke Math. J., Tome 13 (1946) no. 1, pp. 529-540. http://gdmltest.u-ga.fr/item/1077473863/