@article{CMH_1973__48_139543,
     author = {K. Voss and G. Ewald},
     title = {Konvexe {Polytope} mit {Symmetriegruppe}},
     journal = {Commentarii mathematici Helvetici},
     pages = {137--150},
     year = {1973},
     volume = {48},
     zbl = {0274.52008},
     url = {http://geodesic.mathdoc.fr/item/CMH_1973__48_139543/}
}