Changhee Lee Donguk Kim Hayong Shin Deok-Soo Kim Trash removal algorithm for fast construction of the elliptic Gabriel graph using Delaunay triangulation. 852-862 2008 40 Computer-Aided Design 8 http://dx.doi.org/10.1016/j.cad.2008.05.002 db/journals/cad/cad40.html#LeeKSK08