@article{DAN_1979_245_1_a18,
     author = {M. Yu. Sumetsky and G. V. Dubrovskiy},
     title = {Decay of bound state in an external field in quasi-classical approximation},
     journal = {Doklady Akademii Nauk},
     pages = {74--77},
     publisher = {mathdoc},
     volume = {245},
     number = {1},
     year = {1979},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1979_245_1_a18/}
}