@article{DE_1972_8_1_a18,
     author = {A. B. Shabat},
     title = {A one-dimensional scattering {theory.~I}},
     journal = {Differencialʹnye uravneni\^a},
     pages = {164--178},
     publisher = {mathdoc},
     volume = {8},
     number = {1},
     year = {1972},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1972_8_1_a18/}
}