@article{FAA_1997_31_3_a6,
     author = {K. Kh. Boimatov},
     title = {On the {Spectrum} of a {Self-Adjoint} {Polynomial} {Pencil}},
     journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a},
     pages = {71--74},
     year = {1997},
     volume = {31},
     number = {3},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FAA_1997_31_3_a6/}
}