@article{DAN_1990_314_5_a21,
     author = {\'E. B. Bykhovskii},
     title = {Mathematical problems in the theory of a one-dimensional},
     journal = {Doklady Akademii Nauk},
     pages = {1106--1110},
     publisher = {mathdoc},
     volume = {314},
     number = {5},
     year = {1990},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1990_314_5_a21/}
}