@article{TMF_1994_98_2_a8,
     author = {A. B. Gordiets and W. Chmielowski},
     title = {Exactly solvable boson model with cubic nonlinearity},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {289--296},
     publisher = {mathdoc},
     volume = {98},
     number = {2},
     year = {1994},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1994_98_2_a8/}
}