%0 Journal Article %A Alspach, Brian %A Xu, Ming-Yao %T 1/2-transitive graphs of order $3p$ %J Journal of Algebraic Combinatorics %D 1994 %P 347-355 %V 3 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/JAC_1994__3_4_a2/ %G en %F JAC_1994__3_4_a2