TY - JOUR AU - Livio Zefiro TI - Generation of an icosahedron by the intersection of five tetrahedra: geometrical and crystallographic features of the intermediate polyhedra JO - Visual Mathematics PY - 2008 VL - 10 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/VM_2008_10_3_a5/ ID - VM_2008_10_3_a5 ER -