TY - JOUR AU - G. A. Margulis AU - E. B. Vinberg TI - Some Linear Groups Virtually Having a Free Quotient JO - Journal of Lie Theory PY - 2000 SP - 171 EP - 180 VL - 10 IS - 1 UR - https://jolt.centre-mersenne.org/articles/10.5802/jolt.196/ DO - 10.5802/jolt.196 ID - JOLT_2000_10_1_a10 ER -