1. Algebraic Topology;Agoston,1976
2. Practical use of bucketing technique in computational geometry;Asano,1985
3. Approximate conversion of rational B-spline patches;Bardis;Computer Aided Geometric Design,1989
4. Topology: A Geometric Account of General Topology, Homotopy Types and the Fundamental Groupoid;Brown,1988
5. First Concepts of Topology: the Geometry of Mappings of Segments, Curves, Circles, and Disks;Chinn,1966