TY - JOUR AU - Frieder Knüppel TI - Products of simple isometries of given conjugacy types. JO - Forum mathematicum PY - 1993 SP - 441 EP - 458 VL - 5 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/FORUM_1993__5_3_141714/ ID - FORUM_1993__5_3_141714 ER -