@article{DAN_1991_317_2_a7,
     author = {V. V. Kochergin},
     title = {On the complexity of computations in finite abelian groups},
     journal = {Doklady Akademii Nauk},
     pages = {291--294},
     year = {1991},
     volume = {317},
     number = {2},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1991_317_2_a7/}
}