@article{ZNSL_1979_90_a4,
     author = {V. N. Kublanovskaya},
     title = {Problem of eigenvalues for regular linear pencil of matrices being close to singular ones},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {63--82},
     publisher = {mathdoc},
     volume = {90},
     year = {1979},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1979_90_a4/}
}