@article{DAN_1982_264_6_a20,
     author = {A. L. Ivanov and L. V. Keldysh},
     title = {The propagation of powerful electromagnetic waves in the semiconductors
},
     journal = {Doklady Akademii Nauk},
     pages = {1363--1366},
     publisher = {mathdoc},
     volume = {264},
     number = {6},
     year = {1982},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1982_264_6_a20/}
}