1. All 2-manifolds have finitely many minimal triangulations;Barnette;Israel J. Math.,1989
2. Simplification envelopes;Cohen,1996
3. On levels of detail in terrains;de Berg,1995
4. Building and traversing a surface at variable resolution;De Floriani,1997
5. Topology preserving edge contraction;Dey;Publ. Inst. Math. (Beograd) (N.S.),1999