@article{DAN_1989_306_5_a8,
     author = {A. L. Chistov},
     title = {The complexity of the construction of the ring of integers of a},
     journal = {Doklady Akademii Nauk},
     pages = {1063--1067},
     year = {1989},
     volume = {306},
     number = {5},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1989_306_5_a8/}
}