@article{UZKU_2009_151_1_a18,
     author = {S. V. Petrushkin and V. V. Samartsev},
     title = {Optical {Cooling} of {Dye-Doped} {Polymer} {Films} during {Photon} {Echo} {Emission}},
     journal = {U\v{c}\"enye zapiski Kazanskogo universiteta. Seri\^a Fiziko-matemati\v{c}eskie nauki},
     pages = {145--149},
     year = {2009},
     volume = {151},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/UZKU_2009_151_1_a18/}
}