Monotone method for the Neumann problem with lower and upper solutions in the reverse order. - Alberto Cabada; Patrick Habets; Susana Lois (Appl. Math. Comput., 2001)

A constructive monotone iterative method for second-order BVP in the presence of lower and upper solutions. - Marielle Cherpion; Colette De Coster; Patrick Habets (Appl. Math. Comput., 2001)