@article{GDZPPN002416999,
title = {Existence and Approximation of Solutions of Non-Linear Elliptic Equations.},
journal = {Mathematische Zeitschrift},
volume = {147},
year = {1976},
pages = {53-64},
zbl = {0324.35037},
url = {http://dml.mathdoc.fr/item/GDZPPN002416999}
}
Stuart, Charles A. Existence and Approximation of Solutions of Non-Linear Elliptic Equations.. Mathematische Zeitschrift, Tome 147 (1976) pp. 53-64. http://gdmltest.u-ga.fr/item/GDZPPN002416999/