TY - JOUR AU - Krantz, Steven G. AU - Parks, Harold R. TI - On the Vector Sum of Two Convex Sets in Space JO - Canadian journal of mathematics PY - 1991 SP - 347 EP - 355 VL - 43 IS - 2 UR - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1991-020-7/ DO - 10.4153/CJM-1991-020-7 ID - 10_4153_CJM_1991_020_7 ER -