@article{ZVMMF_2010_50_6_a9,
     author = {S. A. Nazarov},
     title = {Formation of gaps in the spectrum of the problem of waves on the surface of a periodic channel},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {1092--1108},
     publisher = {mathdoc},
     volume = {50},
     number = {6},
     year = {2010},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_2010_50_6_a9/}
}