@article{MZ_1984__188_173560, author = {H.S.M. Coxeter}, title = {Regular and {Semi-Regular} {Polytopes.} {II.}}, journal = {Mathematische Zeitschrift}, pages = {559--592}, publisher = {mathdoc}, volume = {188}, year = {1984}, url = {http://geodesic.mathdoc.fr/item/MZ_1984__188_173560/} }