@article{DAN_1988_300_4_a15,
     author = {A. Yu. Kolesov},
     title = {Description of the phase instability of a system of harmonic},
     journal = {Doklady Akademii Nauk},
     pages = {831--835},
     publisher = {mathdoc},
     volume = {300},
     number = {4},
     year = {1988},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1988_300_4_a15/}
}