- Kauffmann, William J. III, Black Holes and Warped Spacetime
(W. H. Freeman Company, San Francisco, 1979).
- Sexl, Hannelore & Roman, White Dwarfs, Black Holes: An Introductions
to Relativistic Astrophyusics (Academic Press, New York, 1979).
All graphics, animations and the "born.c" simulation software were created
by the author for this project.