@article{NUMA_1990__58_5_133525,
     author = {D.J. Rose and P.J. Lanzkron and D.B. Szyld},
     title = {Convergence of nested classical iterative methods for linear systems.},
     journal = {Numerische Mathematik},
     pages = {685--702},
     publisher = {mathdoc},
     volume = {58},
     number = {5},
     year = {1990},
     zbl = {0718.65022},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1990__58_5_133525/}
}