@article{1077468337,
author = {Miles, Jr., E. P. and Williams, Ernest},
title = {Basic sets of polynomials for the iterated Laplace and wave
equations},
journal = {Duke Math. J.},
volume = {26},
number = {1},
year = {1959},
pages = { 35-40},
language = {en},
url = {http://dml.mathdoc.fr/item/1077468337}
}
Miles, Jr., E. P.; Williams, Ernest. Basic sets of polynomials for the iterated Laplace and wave
equations. Duke Math. J., Tome 26 (1959) no. 1, pp. 35-40. http://gdmltest.u-ga.fr/item/1077468337/