@article{1103052192, author = {Hirschman, I. I. and Widder, D. V.}, title = {Convolution transforms with complex kernels.}, journal = {Pacific J. Math.}, volume = {1}, number = {1}, year = {1951}, pages = { 211-225}, language = {en}, url = {http://dml.mathdoc.fr/item/1103052192} }
Hirschman, I. I.; Widder, D. V. Convolution transforms with complex kernels.. Pacific J. Math., Tome 1 (1951) no. 1, pp. 211-225. http://gdmltest.u-ga.fr/item/1103052192/