@article{DAN_1989_304_1_a1,
     author = {Yu. A. Belov and V. S. Kas'yanyuk},
     title = {On the set of values of a system of linear functionals according},
     journal = {Doklady Akademii Nauk},
     pages = {14--17},
     publisher = {mathdoc},
     volume = {304},
     number = {1},
     year = {1989},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1989_304_1_a1/}
}