@article{01278749, title = {A radial derivative with boundary values of the spherical Poisson integral.}, journal = {Georgian Mathematical Journal}, volume = {6}, year = {1999}, pages = {19-32}, doi = {10.1023/A:1022974225248}, zbl = {0922.33008}, language = {en}, url = {http://dml.mathdoc.fr/item/01278749} }
Dzagnidze, O. A radial derivative with boundary values of the spherical Poisson integral.. Georgian Mathematical Journal, Tome 6 (1999) pp. 19-32. doi : 10.1023/A:1022974225248. http://gdmltest.u-ga.fr/item/01278749/