@article{DAN_1975_222_4_a2,
     author = {I. I. Ibragimov and N. I. Nagnibida},
     title = {Some remarks on multiple completeness of systems of analytic functions},
     journal = {Doklady Akademii Nauk},
     pages = {769--771},
     publisher = {mathdoc},
     volume = {222},
     number = {4},
     year = {1975},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1975_222_4_a2/}
}