@article{DAN_1997_354_3_a6,
     author = {T. N. Syrennaya},
     title = {The {Dirichlet} problem in a ball for a nonstrongly elliptic system},
     journal = {Doklady Akademii Nauk},
     pages = {313--315},
     publisher = {mathdoc},
     volume = {354},
     number = {3},
     year = {1997},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1997_354_3_a6/}
}