@article{ASNSP_1975_4_2_3_421_0,
     author = {Friedman, Avner and Jensen, Robert},
     title = {A parabolic quasi-variational inequality arising in hydraulics},
     journal = {Annali della Scuola Normale Superiore di Pisa - Classe di Scienze},
     pages = {421--468},
     publisher = {Scuola normale superiore},
     volume = {Ser. 4, 2},
     number = {3},
     year = {1975},
     mrnumber = {380106},
     zbl = {0316.49034},
     language = {en},
     url = {http://www.numdam.org/item/ASNSP_1975_4_2_3_421_0/}
}