@article{DAN_1989_308_4_a10,
     author = {I. V. Kurcheeva},
     title = {On {Guckenheimer's} conjecture},
     journal = {Doklady Akademii Nauk},
     pages = {812--815},
     year = {1989},
     volume = {308},
     number = {4},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1989_308_4_a10/}
}