@article{ZNSL_1996_233_a3,
     author = {J. Filo and S. Luckhaus},
     title = {Coupling the equation for filtration flow to a~first order conservation law on the boundary},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {53--54},
     year = {1996},
     volume = {233},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1996_233_a3/}
}