@article{GT_2005_9_4_a3,
     author = {Kapovich, Michael},
     title = {Representations of polygons of finite groups},
     journal = {Geometry & topology},
     pages = {1915--1951},
     publisher = {mathdoc},
     volume = {9},
     number = {4},
     year = {2005},
     doi = {10.2140/gt.2005.9.1915},
     url = {http://geodesic.mathdoc.fr/articles/10.2140/gt.2005.9.1915/}
}