@article{EXMA_2001__10_1_230682,
     author = {Bobenko, Alexander I. and Hoffmann, Tim},
     title = {Conformally symmetric circle packings: {A} generalization of {Doyle's} spirals.},
     journal = {Experimental mathematics},
     pages = {141--150},
     publisher = {mathdoc},
     volume = {10},
     number = {1},
     year = {2001},
     zbl = {0987.52008},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EXMA_2001__10_1_230682/}
}