@article{ZNSL_1992_197_a0,
     author = {M. A. Abdrachmanov},
     title = {$L_2$-estimates for solutions of the general boundary-value problems for the equations with mixed parabolic-elliptic structure},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {4--27},
     publisher = {mathdoc},
     volume = {197},
     year = {1992},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1992_197_a0/}
}