@article{DAN_1990_310_4_a7,
     author = {O. I. Tavgen'},
     title = {Finite width of arithmetic subgroups of {Chevalley} groups of rank $\ge2$},
     journal = {Doklady Akademii Nauk},
     pages = {802--806},
     publisher = {mathdoc},
     volume = {310},
     number = {4},
     year = {1990},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1990_310_4_a7/}
}