Bowers, Philip L.; Hurdal, Monica K. (2003), "Planar conformal mappings of piecewise flat surfaces", in Hege, Hans-Christian; Polthier, Konrad (eds.), Visualization and Mathematics III, Mathematics and Visualization, Springer, pp. 3–34, doi:10.1007/978-3-662-05105-4_1, MR2046999.
Bowers, Philip L.; Stephenson, Kenneth (2004), "8.2 Inversive distance packings", Uniformizing dessins and Belyĭ maps via circle packing, Memoirs of the American Mathematical Society, vol. 170, pp. 78–82, doi:10.1090/memo/0805, MR2053391.
Bowers, Philip L.; Hurdal, Monica K. (2003), "Planar conformal mappings of piecewise flat surfaces", in Hege, Hans-Christian; Polthier, Konrad (eds.), Visualization and Mathematics III, Mathematics and Visualization, Springer, pp. 3–34, doi:10.1007/978-3-662-05105-4_1, MR2046999.
Deza, Michel Marie; Deza, Elena (2014), "Inversive distance", Encyclopedia of Distances (3rd ed.), Springer, p. 369, doi:10.1007/978-3-662-44342-2_19
Bowers, Philip L.; Stephenson, Kenneth (2004), "8.2 Inversive distance packings", Uniformizing dessins and Belyĭ maps via circle packing, Memoirs of the American Mathematical Society, vol. 170, pp. 78–82, doi:10.1090/memo/0805, MR2053391.