%0 Journal Article %A Livio Zefiro %T The compound of three octahedra and a remarkable compound of three square dipyramids, the Escher's solid %J Visual Mathematics %D 2010 %V 12 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/VM_2010_12_3_a3/ %F VM_2010_12_3_a3