@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/