@article{JRAM_1997__486_153910,
     author = {M. Flucher and M. Rumpf},
     title = {Bernoulli's free-boundary problem, qualitative theory and numerical approximation.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {165--204},
     publisher = {mathdoc},
     volume = {486},
     year = {1997},
     zbl = {0909.35154},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1997__486_153910/}
}