TY - JOUR AU - Alspach, Brian AU - Xu, Ming-Yao TI - 1/2-transitive graphs of order $3p$ JO - Journal of Algebraic Combinatorics PY - 1994 SP - 347 EP - 355 VL - 3 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/JAC_1994__3_4_a2/ LA - en ID - JAC_1994__3_4_a2 ER -