@article{M2AN_1977__11_2_197_0,
     author = {Scarpini, Francesco and Vivaldi, Maria Agostina},
     title = {Error estimates for the approximation of some unilateral problems},
     journal = {RAIRO. Analyse num\'erique},
     pages = {197--208},
     publisher = {Centrale des revues, Dunod-Gauthier-Villars},
     address = {Montreuil},
     volume = {11},
     number = {2},
     year = {1977},
     mrnumber = {488860},
     zbl = {0358.65087},
     language = {en},
     url = {http://archive.numdam.org/item/M2AN_1977__11_2_197_0/}
}