@article{1077474132,
author = {Bergman, Stefan},
title = {Functions satisfying certain partial differential equations of
elliptic type and their representation},
journal = {Duke Math. J.},
volume = {14},
number = {1},
year = {1947},
pages = { 349-366},
language = {en},
url = {http://dml.mathdoc.fr/item/1077474132}
}
Bergman, Stefan. Functions satisfying certain partial differential equations of
elliptic type and their representation. Duke Math. J., Tome 14 (1947) no. 1, pp. 349-366. http://gdmltest.u-ga.fr/item/1077474132/