@article{MZM_1998_64_6_a6,
     author = {A. N. Zubkov},
     title = {On a matrix representation of a free group},
     journal = {Matemati\v{c}eskie zametki},
     pages = {863--870},
     publisher = {mathdoc},
     volume = {64},
     number = {6},
     year = {1998},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1998_64_6_a6/}
}