V. Lakshmikantham et As. Vatsala, Generalized quasilinearization and semilinear elliptic boundary value problems, J MATH ANAL, 249(1), 2000, pp. 199-220
The method of generalized quasilinearization is extended to semilinear elli
ptic problems employing both the classical and variational approaches. The
results discussed are very general and include several special cases of int
erest. (C) 2000 Academic Press.