@article{GDZPPN002068249,
title = {Locally toroidal regular polytopes of rank 4.},
journal = {Commentarii mathematici Helvetici},
volume = {67},
year = {1992},
pages = {77-118},
zbl = {0784.52016},
url = {http://dml.mathdoc.fr/item/GDZPPN002068249}
}
McMullen, Peter; Schulte, Egon. Locally toroidal regular polytopes of rank 4.. Commentarii mathematici Helvetici, Tome 67 (1992) pp. 77-118. http://gdmltest.u-ga.fr/item/GDZPPN002068249/