TY - JOUR AU - Diego Bravo AU - Juan Rada TI - Coalescence of Difans and Diwheels JO - Bulletin of the Malaysian Mathematical Society PY - 2007 VL - 30 IS - 1 UR - http://geodesic.mathdoc.fr/item/BMMS_2007_30_1_a5/ ID - BMMS_2007_30_1_a5 ER -