@article{AFST_1989_5_10_2_215_0,
     author = {Degiovanni, Marco},
     title = {Bifurcation problems for nonlinear elliptic variational inequalities},
     journal = {Annales de la Facult\'e des sciences de Toulouse : Math\'ematiques},
     pages = {215--258},
     publisher = {Universit\'e Paul Sabatier},
     address = {Toulouse},
     volume = {Ser. 5, 10},
     number = {2},
     year = {1989},
     mrnumber = {1425487},
     zbl = {0656.58030},
     language = {en},
     url = {http://www.numdam.org/item/AFST_1989_5_10_2_215_0/}
}