Gill Barequet Prosenjit Bose Matthew T. Dickerson Michael T. Goodrich Optimizing a constrained convex polygonal annulus. 1-26 2005 3 J. Discrete Algorithms 1 http://dx.doi.org/10.1016/j.jda.2003.12.004 db/journals/jda/jda3.html#BarequetBDG05