@article{1077468768,
author = {Widder, D. V.},
title = {Expansions in series of homogeneous polynomial solutions of
the two-dimensional wave equation},
journal = {Duke Math. J.},
volume = {26},
number = {1},
year = {1959},
pages = { 591-598},
language = {en},
url = {http://dml.mathdoc.fr/item/1077468768}
}
Widder, D. V. Expansions in series of homogeneous polynomial solutions of
the two-dimensional wave equation. Duke Math. J., Tome 26 (1959) no. 1, pp. 591-598. http://gdmltest.u-ga.fr/item/1077468768/