@article{ZNSL_1976_58_a9,
     author = {V. N. Kublanovskaya and V. B. Mikhailov and V. B. Khazanov},
     title = {Eigenvalue problem for an irregular $\lambda$-matrix},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {80--92},
     year = {1976},
     volume = {58},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1976_58_a9/}
}