@article{MZM_1971_9_6_a10,
     author = {N. S. Romanovskii},
     title = {Subgroups of general and special linear groups over a~ring},
     journal = {Matemati\v{c}eskie zametki},
     pages = {699--708},
     publisher = {mathdoc},
     volume = {9},
     number = {6},
     year = {1971},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1971_9_6_a10/}
}