%0 Journal Article %A D. Ferrarello %A M. F. Mammana %A M. Pennisi %T Some Concyclicity Properties of Convex Quadrilaterals %J Journal for geometry and graphics %D 2013 %P 7-19 %V 17 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/JGG_2013_17_1_JGG_2013_17_1_a1/ %F JGG_2013_17_1_JGG_2013_17_1_a1