@article{ETNA_2000__11__a5,
     author = {Wohlmuth,  Barbara I.},
     title = {A multigrid method for saddle point problems arising from mortar finite element discretizations},
     journal = {Electronic transactions on numerical analysis},
     pages = {43--54},
     year = {2000},
     volume = {11},
     zbl = {0958.65135},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ETNA_2000__11__a5/}
}