@article{ZNSL_1976_64_a3,
     author = {Z. I. Borevich and B. A. Tolasov},
     title = {Normal net subgroups of the full linear group},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {49--54},
     year = {1976},
     volume = {64},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1976_64_a3/}
}