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@article{MZ_1994__217_1_174690, author = {Stephen P. Humphries}, title = {Quotients of {Coxeter} complexes, fundamental groupoids and {Regular} {Graphs.}}, journal = {Mathematische Zeitschrift}, pages = {247--274}, publisher = {mathdoc}, volume = {217}, number = {1}, year = {1994}, zbl = {0807.57002}, url = {http://geodesic.mathdoc.fr/item/MZ_1994__217_1_174690/} }
Stephen P. Humphries. Quotients of Coxeter complexes, fundamental groupoids and Regular Graphs.. Mathematische Zeitschrift, Tome 217 (1994) no. 1, pp. 247-274. http://geodesic.mathdoc.fr/item/MZ_1994__217_1_174690/