@article{ZVMMF_2001_41_9_a14,
     author = {V. A. Trofimov},
     title = {Invariants of femtosecond pulse propagation in photonic crystals},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {1429--1433},
     publisher = {mathdoc},
     volume = {41},
     number = {9},
     year = {2001},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_2001_41_9_a14/}
}