@article{05695199, title = {On the existence, uniqueness, and basis properties of radial eigenfunctions of a semilinear second-order elliptic equation in a ball.}, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {2009}, year = {2009}, doi = {10.1155/2009/243048}, zbl = {1188.35054}, language = {en}, url = {http://dml.mathdoc.fr/item/05695199} }
Zhidkov, Peter. On the existence, uniqueness, and basis properties of radial eigenfunctions of a semilinear second-order elliptic equation in a ball.. International Journal of Mathematics and Mathematical Sciences, Tome 2009 (2009) . doi : 10.1155/2009/243048. http://gdmltest.u-ga.fr/item/05695199/