@article{M2AN_1977__11_4_315_0,
     author = {Baiocchi, C. and Pozzi, G. A.},
     title = {Error estimates and free-boundary convergence for a finite difference discretization of a parabolic variational inequality},
     journal = {RAIRO. Analyse num\'erique},
     pages = {315--340},
     publisher = {Centrale des revues, Dunod-Gauthier-Villars},
     address = {Montreuil},
     volume = {11},
     number = {4},
     year = {1977},
     mrnumber = {464607},
     zbl = {0371.65020},
     language = {en},
     url = {http://www.numdam.org/item/M2AN_1977__11_4_315_0/}
}