@article{JRAM_1976__282_151697,
     author = {E.L. Roetman},
     title = {Pointwise convergence for expansions in surface harmonics of arbitrary dimension.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {1--10},
     year = {1976},
     volume = {282},
     zbl = {0317.41015},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1976__282_151697/}
}