David Eppstein. The graphs of planar soap bubbles. In Guilherme Dias da Fonseca, Thomas Lewiner, Luis Mariano Peñaranda, Timothy Chan, Rolf Klein, editors, Symposuim on Computational Geometry 2013, SoCG '13, Rio de Janeiro, Brazil, June 17-20, 2013. pages 27-36, ACM, 2013. [doi]
Abstract is missing.