@article{GDZPPN001184482, title = {Comparison theorems for weak splittings of bounded operators.}, journal = {Numerische Mathematik}, volume = {58}, year = {1990}, pages = {387-398}, zbl = {0694.65023}, url = {http://dml.mathdoc.fr/item/GDZPPN001184482} }
Marek, Ivo; Szyld, Daniel B. Comparison theorems for weak splittings of bounded operators.. Numerische Mathematik, Tome 58 (1990) pp. 387-398. http://gdmltest.u-ga.fr/item/GDZPPN001184482/