@article{GDZPPN001164031,
title = {Alternating Direction Methods for Three Space Variables.},
journal = {Numerische Mathematik},
volume = {4},
year = {1962},
pages = {41-63},
zbl = {0104.35001},
url = {http://dml.mathdoc.fr/item/GDZPPN001164031}
}
DOUGLAS, J. jr. Alternating Direction Methods for Three Space Variables.. Numerische Mathematik, Tome 4 (1962) pp. 41-63. http://gdmltest.u-ga.fr/item/GDZPPN001164031/