@article{DAN_1980_250_5_a12,
     author = {A. G. Khovanskii},
     title = {Straightening of parallel curves},
     journal = {Doklady Akademii Nauk},
     pages = {1074--1076},
     year = {1980},
     volume = {250},
     number = {5},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1980_250_5_a12/}
}