@article{10_4171_ifb_33,
     author = {Michel Chipot},
     title = {On the continuity of the free boundary in some class of two-dimensional problems},
     journal = {Interfaces and free boundaries},
     pages = {81--99},
     year = {2001},
     volume = {3},
     number = {1},
     doi = {10.4171/ifb/33},
     url = {http://geodesic.mathdoc.fr/articles/10.4171/ifb/33/}
}