1. A good source of earlier work in carbons is the review series Chemistry and Physics of Carbon (Edited by P. L. Walker Jr.), Vols. 1–8. Marcel Dekker, New York; specific references to these reviews are given at appropriate places.
2. Intercalation compounds of graphite
3. Density and structural distributions in artificial graphites
4. A. H. Stiller, J. T. Sears, and R. W. Hammack, U.S. Patent #4,272,356 (1981).