@article{DAN_1991_318_6_a7,
     author = {V. B. Levenshtam},
     title = {Exponential dichotomy and the averaging method for parabolic},
     journal = {Doklady Akademii Nauk},
     pages = {1316--1319},
     year = {1991},
     volume = {318},
     number = {6},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1991_318_6_a7/}
}