@article{SM_1995_80_2_a7,
     author = {A. A. Kon'kov},
     title = {On the dimension of the~solution space of elliptic systems in unbounded domains},
     journal = {Sbornik. Mathematics},
     pages = {411--434},
     year = {1995},
     volume = {80},
     number = {2},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1995_80_2_a7/}
}