1. Uber die reduction der positiven quadratischen formen mit drei unbestimmten ganzen zahlen;Dirichlet;Z. Reine Angew. Math,1850
2. Computing dirichlet tessellations in the plane;Green;The Computer Journal,1978
3. Triangulation of a simple polygon;Garey,1978
4. Delauney based representation of surfaces defined over arbitrarily shaped domains;De Floriany,1985
5. Computational geometry;Preparata,1985