@article{GDZPPN001171372,
title = {A Numerical Method for Solving Singular Boundary Value Problems.},
journal = {Numerische Mathematik},
volume = {21},
year = {1973},
pages = {328-344},
zbl = {0255.65032},
url = {http://dml.mathdoc.fr/item/GDZPPN001171372}
}
Gustafsson, Bertil. A Numerical Method for Solving Singular Boundary Value Problems.. Numerische Mathematik, Tome 21 (1973) pp. 328-344. http://gdmltest.u-ga.fr/item/GDZPPN001171372/