@article{MZM_2007_82_1_a5,
     author = {G. V. Koval' and V. P. Maslov},
     title = {Ultrasecond {Quantization} at {Temperatures} {Distinct} from {Zero}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {52--57},
     publisher = {mathdoc},
     volume = {82},
     number = {1},
     year = {2007},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2007_82_1_a5/}
}