@article{VM_2007_9_3_a4,
     author = {Izidor Hafner and Tomislav Zitko},
     title = {3D illustrations to {Chapter} 8 of {Cromwell's} {Polyhedra}},
     journal = {Visual Mathematics},
     publisher = {mathdoc},
     volume = {9},
     number = {3},
     year = {2007},
     url = {http://geodesic.mathdoc.fr/item/VM_2007_9_3_a4/}
}