@article{MZM_2018_103_1_a4,
     author = {A. Yu. Belyaev},
     title = {Proof of {Dupuit's} {Assumption} for the {Free} {Boundary} {Problem} in an {Inhomogeneous} {Porous} {Medium}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {49--64},
     publisher = {mathdoc},
     volume = {103},
     number = {1},
     year = {2018},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2018_103_1_a4/}
}