@article{UZKU_2013_155_1_a17,
     author = {S. V. Petrushkin},
     title = {Donor-acceptor pairs for optical cooling of semiconductors},
     journal = {U\v{c}\"enye zapiski Kazanskogo universiteta. Seri\^a Fiziko-matemati\v{c}eskie nauki},
     pages = {127--130},
     year = {2013},
     volume = {155},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/UZKU_2013_155_1_a17/}
}