@article{DAN_1963_151_2_a17,
     author = {V. Maslov},
     title = {Scattering problem in quasiclassic approximation},
     journal = {Doklady Akademii Nauk},
     pages = {306--309},
     publisher = {mathdoc},
     volume = {151},
     number = {2},
     year = {1963},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1963_151_2_a17/}
}