@article{10_4153_CJM_1995_033_7,
     author = {Schulte, Egon and Weiss, Asia Ivi\'c},
     title = {Free {Extensions} of {Chiral} {Polytopes}},
     journal = {Canadian journal of mathematics},
     pages = {641--654},
     year = {1995},
     volume = {47},
     number = {3},
     doi = {10.4153/CJM-1995-033-7},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1995-033-7/}
}