TY - JOUR AU - E. Barbieri AU - A. Cavicchioli AU - F. Spaggiari TI - A Generalization of Helling-Kim-Mennicke Groups and Manifolds JO - Journal of Lie theory PY - 2007 SP - 857 EP - 867 VL - 17 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/JLT_2007_17_4_JLT_2007_17_4_a6/ ID - JLT_2007_17_4_JLT_2007_17_4_a6 ER -