@article{DAN_1996_346_2_a5, author = {A. Yanushauskas}, title = {On the {Fredholm} property of the {Dirichlet} problem for a system of second-order partial differential equations that is elliptic in the sense of {Petrovskii}}, journal = {Doklady Akademii Nauk}, pages = {165--167}, publisher = {mathdoc}, volume = {346}, number = {2}, year = {1996}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1996_346_2_a5/} }