@article{GDZPPN001186345,
title = {Multilevel iterative methods for mixed finite element discretizations of elliptic problems.},
journal = {Numerische Mathematik},
volume = {63},
year = {1992},
pages = {503-520},
zbl = {0797.65086},
url = {http://dml.mathdoc.fr/item/GDZPPN001186345}
}
Wang, Junping; Vassilevski, P.S. Multilevel iterative methods for mixed finite element discretizations of elliptic problems.. Numerische Mathematik, Tome 63 (1992) pp. 503-520. http://gdmltest.u-ga.fr/item/GDZPPN001186345/