@article{DAN_1957_116_2_a10,
     author = {B. Z. Katsenelenbaum},
     title = {A contribution to the general theory of non-regular wave guides},
     journal = {Doklady Akademii Nauk},
     pages = {203--206},
     publisher = {mathdoc},
     volume = {116},
     number = {2},
     year = {1957},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1957_116_2_a10/}
}