@article{VM_2008_10_3_a5,
     author = {Livio Zefiro},
     title = {Generation of an icosahedron by the intersection of five tetrahedra: geometrical and crystallographic features of the intermediate polyhedra},
     journal = {Visual Mathematics},
     publisher = {mathdoc},
     volume = {10},
     number = {3},
     year = {2008},
     url = {http://geodesic.mathdoc.fr/item/VM_2008_10_3_a5/}
}