@article{NUMA_1962__4_131514,
     author = {J. jr. DOUGLAS},
     title = {Alternating {Direction} {Methods} for {Three} {Space} {Variables.}},
     journal = {Numerische Mathematik},
     pages = {41--63},
     publisher = {mathdoc},
     volume = {4},
     year = {1962},
     zbl = {0104.35001},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1962__4_131514/}
}