@article{TMF_1998_115_1_a7,
     author = {E. P. Velicheva and A. A. Suz'ko},
     title = {Exactly solvable models and dynamic quantum systems},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {106--131},
     publisher = {mathdoc},
     volume = {115},
     number = {1},
     year = {1998},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1998_115_1_a7/}
}