@article{GDZPPN002191784,
title = {Pointwise convergence for expansions in surface harmonics of arbitrary dimension.},
journal = {Journal f\"ur die reine und angewandte Mathematik},
volume = {281},
year = {1976},
pages = {1-10},
zbl = {0317.41015},
url = {http://dml.mathdoc.fr/item/GDZPPN002191784}
}
Roetman, E.L. Pointwise convergence for expansions in surface harmonics of arbitrary dimension.. Journal für die reine und angewandte Mathematik, Tome 281 (1976) pp. 1-10. http://gdmltest.u-ga.fr/item/GDZPPN002191784/