@article{MZM_1997_61_1_a7,
     author = {V. V. Kucherenko and V. P. Maslov},
     title = {Normal forms of quadratic {Bose} operators},
     journal = {Matemati\v{c}eskie zametki},
     pages = {69--90},
     publisher = {mathdoc},
     volume = {61},
     number = {1},
     year = {1997},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1997_61_1_a7/}
}