TY - JOUR AU - Mott, Joe L. TI - Convex Directed Subgroups of a Group of Divisibility JO - Canadian journal of mathematics PY - 1974 SP - 532 EP - 542 VL - 26 IS - 3 UR - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1974-049-2/ DO - 10.4153/CJM-1974-049-2 ID - 10_4153_CJM_1974_049_2 ER -