@article{GDZPPN001183591,
title = {A Class of Iterative Methods for Solving Saddle Point Problems.},
journal = {Numerische Mathematik},
volume = {56},
year = {1989},
pages = {645-666},
zbl = {0684.65031},
url = {http://dml.mathdoc.fr/item/GDZPPN001183591}
}
Bank, R.E.; Welfert, B.D.; ... A Class of Iterative Methods for Solving Saddle Point Problems.. Numerische Mathematik, Tome 56 (1989) pp. 645-666. http://gdmltest.u-ga.fr/item/GDZPPN001183591/