@article{TMF_2000_122_3_a7,
     author = {E. Yu. Spirina and O. A. Khrustalev and M. V. Chichikina},
     title = {Nonstationary polaron},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {417--425},
     publisher = {mathdoc},
     volume = {122},
     number = {3},
     year = {2000},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_2000_122_3_a7/}
}