%0 Journal Article %A Livio Zefiro %T Generation of an icosahedron by the intersection of five tetrahedra: geometrical and crystallographic features of the intermediate polyhedra %J Visual Mathematics %D 2008 %V 10 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/VM_2008_10_3_a5/ %F VM_2008_10_3_a5