@article{10_4171_ifb_96,
     author = {Joachim Escher},
     title = {Classical solutions to a moving boundary problem for an elliptic-parabolic system},
     journal = {Interfaces and free boundaries},
     pages = {175--193},
     year = {2004},
     volume = {6},
     number = {2},
     doi = {10.4171/ifb/96},
     url = {http://geodesic.mathdoc.fr/articles/10.4171/ifb/96/}
}