1. The Principle of Relativity;Whitehead,2007
2. Whitehead’s principle of Relativity;Coleman,2005
3. Kerr solution of Whitehead’s theory of gravity;Russell;Bull. Am. Phys. Soc.,1987
4. A Generalized Whiteheadian Theory of Gravity: The Kerr Solution, unpublished paper, 1986
http://www.ctr4process.org/publications/ProcessStudies/PSS/2004-6-Russell-Wasserman-A_Generalized_Whiteheadian_Theory _of_Gravity.pdf
5. Some algebraically degenerate solutions of Einstein’s gravitational field equations;Kerr;Proc. Symp. Appl. Math.,1965