@article{DAN_1976_228_2_a16,
     author = {V. I. Shevchenko},
     title = {Some estimates for the number of connected components of a set of elliptic systems},
     journal = {Doklady Akademii Nauk},
     pages = {322--324},
     publisher = {mathdoc},
     volume = {228},
     number = {2},
     year = {1976},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1976_228_2_a16/}
}