%0 Journal Article %A L. I. Mogilevich %T Some problems of singular perturbations in the nonlinear filtration of a~compressible fluid %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 1976 %P 113-116 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_1976_3_a15/ %G ru %F IVM_1976_3_a15