@article{DAN_1981_257_1_a7,
     author = {Le Suan Kan},
     title = {Quasiperiodic oscillations in quasilinear autonomous systems with delay},
     journal = {Doklady Akademii Nauk},
     pages = {38--41},
     year = {1981},
     volume = {257},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1981_257_1_a7/}
}