@article{GDZPPN00237918X, title = {Regular and semi-regular polytopes. I}, journal = {Mathematische Zeitschrift}, volume = {46}, year = {1940}, pages = {380-407}, zbl = {0022.38305}, url = {http://dml.mathdoc.fr/item/GDZPPN00237918X} }
Coxeter, H. S. M.,. Regular and semi-regular polytopes. I. Mathematische Zeitschrift, Tome 46 (1940) pp. 380-407. http://gdmltest.u-ga.fr/item/GDZPPN00237918X/