1-3 of 3 Books
Recent advances in partial differential equations and applications
Recent advances in partial differential equations and applications
By H. Beirão da Veiga,A. Sequeira,V. A. Solonnikov
Nonlinear elliptic equations and nonassociative algebras
Nonlinear elliptic equations and nonassociative algebras
By Nikolai Nadirashvili

Nonlinear elliptic equations of the second order
By Qing Han