Gill Barequet Michael T. Goodrich Aya Levi-Steiner Dvir Steiner Contour interpolation by straight skeletons. 245-260 2004 66 Graphical Models 4 http://dx.doi.org/10.1016/j.gmod.2004.05.001 db/journals/cvgip/cvgip66.html#BarequetGLS04