@article{M2AN_1990__24_6_711_0,
     author = {Hoppe, Ronald H. W.},
     title = {Une m\'ethode multigrille pour la solution des probl\`emes d'obstacle},
     journal = {ESAIM: Mod\'elisation math\'ematique et analyse num\'erique},
     pages = {711--735},
     publisher = {AFCET - Gauthier-Villars},
     address = {Paris},
     volume = {24},
     number = {6},
     year = {1990},
     mrnumber = {1080716},
     zbl = {0716.65056},
     language = {fr},
     url = {http://www.numdam.org/item/M2AN_1990__24_6_711_0/}
}