@article{DAN_1985_283_5_a33,
     author = {A. I. Nosich and A. E. Poedinchuk and V. P. Shestopalov},
     title = {The discrete spectrum of natural waves of an open partially},
     journal = {Doklady Akademii Nauk},
     pages = {1165--1169},
     publisher = {mathdoc},
     volume = {283},
     number = {5},
     year = {1985},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1985_283_5_a33/}
}