@article{01784606, title = {On perfect 4-polytopes.}, journal = {Beitr\"age zur Algebra und Geometrie}, volume = {43}, year = {2002}, pages = {243-259}, zbl = {1066.52015}, language = {en}, url = {http://dml.mathdoc.fr/item/01784606} }
Gévay, Gabor. On perfect 4-polytopes.. Beiträge zur Algebra und Geometrie, Tome 43 (2002) pp. 243-259. http://gdmltest.u-ga.fr/item/01784606/