1. S.A. Coons, “Surfaces for Computer-Aided Design of Space Figures,” M.I.T. ESL Memorandum 9442-M-139, January 1964.
2. “Surfaces for Computer-Aided Design of Space Forms,”;Coons,1967
3. “Multi-variable Curve Interpolation,”;Ferguson,1963
4. A.R. Forrest, “Curves and Surfaces for Computer-Aided Design,” Doctoral thesis, University of Cambridge, 1968.
5. A.L. Eshleman and H.D. Meriwether, “Graphic Applications to Aerospace Structural Design Problems, “SHARE Annual Design Automation Workshop, Los Angeles, 1967.