On the existence and smoothness of radially symmetric solutions of a BVP for a class of nonlinear, non-Lipschitz perturbations of the Laplace equation. Hegedűs, Jenö — 2002 Electronic Journal of Qualitative Theory of Differential Equations [electronic only]
On the radially symmetric solutions of a BVP for a class of nonlinear elliptic partial differential equations. Hegedűs, Jenő — 2000 Electronic Journal of Qualitative Theory of Differential Equations [electronic only]