@article{ZNSL_1980_96_a1,
     author = {S. N. Antontsev},
     title = {A~finite velocity of propagation of disturbances in multidimensional two-phase filtration-problems},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {3--12},
     publisher = {mathdoc},
     volume = {96},
     year = {1980},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1980_96_a1/}
}