@article{10_37236_78,
     author = {Martin von Gagern and J\"urgen Richter-Gebert},
     title = {Hyperbolization of {Euclidean} ornaments},
     journal = {The electronic journal of combinatorics},
     year = {2009},
     volume = {16},
     number = {2},
     doi = {10.37236/78},
     zbl = {1168.51310},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/78/}
}