@article{MZM_1997_61_6_a4,
     author = {V. V. Kucherenko and V. P. Maslov},
     title = {On the spectra of finite-dimensional quadratic {Bose} operators},
     journal = {Matemati\v{c}eskie zametki},
     pages = {835--854},
     publisher = {mathdoc},
     volume = {61},
     number = {6},
     year = {1997},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1997_61_6_a4/}
}