@article{GDZPPN001170090, title = {Solution of Monotone Nonlinear Elliptic Boundary Value Problems.}, journal = {Numerische Mathematik}, volume = {18}, year = {1971}, pages = {336-344}, zbl = {0215.27502}, url = {http://dml.mathdoc.fr/item/GDZPPN001170090} }
Schryer, N.L. Solution of Monotone Nonlinear Elliptic Boundary Value Problems.. Numerische Mathematik, Tome 18 (1971) pp. 336-344. http://gdmltest.u-ga.fr/item/GDZPPN001170090/