@article{ZVMMF_2009_49_6_a13,
     author = {A. V. Vinogradov and A. V. Popov and D. V. Prokopovich},
     title = {On the explicit parametric description of waves in periodic media},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {1119--1130},
     publisher = {mathdoc},
     volume = {49},
     number = {6},
     year = {2009},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_2009_49_6_a13/}
}