@article{DE_1990_26_12_a17, author = {M. A. Abdrachmanov}, title = {A priori $L_2$-estimates for the solution of an initial-boundary value problem for a system of two equations of general type that has a mixed parabolic-elliptic structure}, journal = {Differencialʹnye uravneni\^a}, pages = {2163--2165}, publisher = {mathdoc}, volume = {26}, number = {12}, year = {1990}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1990_26_12_a17/} }