TY - JOUR AU - Karl-Hermann Neeb TI - A general non-linear convexity theorem. JO - Forum mathematicum PY - 1997 SP - 613 EP - 640 VL - 9 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/FORUM_1997__9_2_141814/ ID - FORUM_1997__9_2_141814 ER -