Subir Kumar Ghosh Thomas C. Shermer Binay K. Bhattacharya Partha P. Goswami Computing the maximum clique in the visibility graph of a simple polygon. 524-532 2007 5 J. Discrete Algorithms 3 http://dx.doi.org/10.1016/j.jda.2006.09.004 db/journals/jda/jda5.html#GhoshSBG07