@article{MZM_1991_50_1_a17,
     author = {V. A. Grinshtein},
     title = {Basis property of a part of the system of eigenvectors of a holomorphic operator-function},
     journal = {Matemati\v{c}eskie zametki},
     pages = {142--144},
     publisher = {mathdoc},
     volume = {50},
     number = {1},
     year = {1991},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1991_50_1_a17/}
}