@article{DAN_1966_167_1_a18,
     author = {N. G. Basov and V. S. Letokhov},
     title = {Change of light pulse shape upon non-linear amplification},
     journal = {Doklady Akademii Nauk},
     pages = {73--76},
     publisher = {mathdoc},
     volume = {167},
     number = {1},
     year = {1966},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1966_167_1_a18/}
}