1. Quadros WR, Ramaswami K, Prinz FB, Gurumoorthy B. LayTracks: A new approach to automated quadrilateral mesh generation using MAT. In: Proceedings of the 9th international meshing roundtable, Oct 2000. p. 239-50.
2. A transformation for extracting new descriptors of shape, models for the perception of speech and visual form;Blum,1967
3. Biological shape and visual science (part I);Blum;J. Theoret. Biol.,1973
4. Shape description using weighted symmetric axis features;Blum;Pattern Recognit,1978
5. Note on differential and topological properties of medial axis transforms;Sherbrooke;Graph Models Image Process,1996