1. H. Margolin, P. A. Farrar, and M. A. Greenfield:The Science, Technology and Application of Titanium, Pergamon Press, Oxford and New York, 1970.
2. M. A. Greenfield and H. Margolin: Technical Report AFML-TR-70-43, April 1970, to Wright-Patterson Air Force Base, Air Force Materials Lab., Dayton, Ohio.
3. M. A. Greenfield and H. Margolin: New York University, Bronx, N.Y., Sept. 1970, unpublished research.