1. Levinthal, C., Barry, C. D., Ward, S. A. and Zwick, M. Computer Graphics in Macromolecular Chemistry.
2. Secrest, D. and Nievergelt, J. (eds.). In Emerging Concepts in Computer Graphics. W. A. Benjamin Inc. (1968), 231–253.
3. Levinthal, C. Molecular Model Building by Computer. Scientific American (1966) 214, 42–52.
4. Supported by Special Research Resource Grant FR 00442, and Contracts PH 43-67-1131 and PH 43-69-1019 from National Institutes of Health.