1. A transformation for extracting new descriptors of shape;Blum,1967
2. A new model of global brain function;Blum;Perspect. Biol. Med.,1967
3. Biological shape and visual science;Blum;J. Theoret. Biol.,1973
4. A geometry for biology;Blum,1974
5. A theorem for closed nonconvex sets;Calabi,1968