@article{DAN_1982_263_2_a18,
     author = {N. B. Baranova and B. Ya. Zel'dovich},
     title = {Bragg three-wave mixing for the optical phase conjugation},
     journal = {Doklady Akademii Nauk},
     pages = {325--327},
     publisher = {mathdoc},
     volume = {263},
     number = {2},
     year = {1982},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1982_263_2_a18/}
}