@article{NUMA_1992__61_3_133616,
     author = {X.-Ch. Cai and W.D. Gropp and D.E. Keyes},
     title = {Convergence rate estimate for a domain decomposition method.},
     journal = {Numerische Mathematik},
     pages = {153--170},
     publisher = {mathdoc},
     volume = {61},
     number = {3},
     year = {1992},
     zbl = {0727.65105},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1992__61_3_133616/}
}