@article{10_4171_ifb_124,
     author = {Michiel Bertsch and Roberta Dal Passo and Carlo Nitsch},
     title = {A system of degenerate parabolic nonlinear {PDE's:} a new free boundary problem},
     journal = {Interfaces and free boundaries},
     pages = {255--276},
     year = {2005},
     volume = {7},
     number = {3},
     doi = {10.4171/ifb/124},
     url = {http://geodesic.mathdoc.fr/articles/10.4171/ifb/124/}
}