@article{RM_1977_32_1_a21,
     author = {V. Yu. Gotlib},
     title = {Properties of the {Schr\"odinger} equation with a~barrier type potential},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     publisher = {mathdoc},
     volume = {32},
     number = {1},
     year = {1977},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/RM_1977_32_1_a21/}
}