@article{AM2_1995__49_1-2_182469,
     author = {Ulrich Brehm and W. K\"uhnel and Egon Schulte},
     title = {Manifold structures on abstract regular polytopes.},
     journal = {Aequationes mathematicae},
     pages = {12--35},
     publisher = {mathdoc},
     volume = {49},
     number = {1-2},
     year = {1995},
     zbl = {0817.51009},
     url = {http://geodesic.mathdoc.fr/item/AM2_1995__49_1-2_182469/}
}