@article{DAN_1961_137_2_a7,
     author = {M. A. Naimark},
     title = {On isomorphic representations of rings and groups},
     journal = {Doklady Akademii Nauk},
     pages = {278--281},
     publisher = {mathdoc},
     volume = {137},
     number = {2},
     year = {1961},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1961_137_2_a7/}
}