@article{DAN_1961_141_1_a10,
     author = {N. T. Tynyanskii},
     title = {Exactness of limit sequences of the inverse spectrum of exact sequences of discrete groups},
     journal = {Doklady Akademii Nauk},
     pages = {43--46},
     year = {1961},
     volume = {141},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1961_141_1_a10/}
}