@article{DAN_1969_187_4_a4,
     author = {I. I. Ibragimov},
     title = {The completeness of systems of analytic functions that are generated by successive derivatives of analytic functions},
     journal = {Doklady Akademii Nauk},
     pages = {726--729},
     publisher = {mathdoc},
     volume = {187},
     number = {4},
     year = {1969},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1969_187_4_a4/}
}