@article{SM_1999_190_2_a2,
     author = {I. V. Kamotskii and S. A. Nazarov},
     title = {Wood's anomalies and surface waves in the problem of scattering by a~periodic {boundary.~II}},
     journal = {Sbornik. Mathematics},
     pages = {205--231},
     year = {1999},
     volume = {190},
     number = {2},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1999_190_2_a2/}
}