1. Abramowitz, M. and Stegun, I. A. Handbook of Mathematical Functions. Dover, New York, 1972.
2. Almgren, F. J., and Taylor, J. E. The geometry of soap films and soap bubbles. Scientific American, July (1976) 82–93.
3. Brakke, K. A. The opaque cube problem video. In: Computing Optimal Geometries, J. E. Taylor (ed.), pp. 10–12. American Mathematical Society, Providence, RI, 1991.
4. Brakke, K. A. Surface Evolver program. Source code and documentation available via anonymous ftp from geom.umn.edu in the pub directory as evolver.tar. z. Code is in C, runs on many systems, and should be easily portable to any C system. A printed version of the documentation is available asSurface Evolver Manual, Research Report GCG 17 (1990) from the Geometry Supercomputer Project, 1200 Washington Ave. South, Minneapolis, MN 55455 USA.
5. Beeson, M. The behavior of a minimal surface in a comer. Arch. Rat. Mech. Anal.65, 379–393 (1977).