@article{GDZPPN001168703,
title = {Numerical Methods of High-Order Accuracy for Singular Nonlinear Boundary Value Problems.},
journal = {Numerische Mathematik},
volume = {15},
year = {1970},
pages = {87-99},
zbl = {0211.19103},
url = {http://dml.mathdoc.fr/item/GDZPPN001168703}
}
CIARLET, P.G.; VARGA, R.S.; NATTERER, F. Numerical Methods of High-Order Accuracy for Singular Nonlinear Boundary Value Problems.. Numerische Mathematik, Tome 15 (1970) pp. 87-99. http://gdmltest.u-ga.fr/item/GDZPPN001168703/