@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/