@article{ZNSL_1995_224_a9,
     author = {N. M. Bogoliubov},
     title = {Exact solution of a~model of three bound oscillators with {Stark} nonlinearity},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {122--128},
     publisher = {mathdoc},
     volume = {224},
     year = {1995},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1995_224_a9/}
}