[SFL] John M. Sullivan, George Francis, and Stuart Levy.
The Optiverse.
In H.-C. Hege and K. Polthier, eds, VideoMath Festival at
ICM'98, Springer, 1998.
Video (7 min).
[Wi] Thomas J. Willmore.
A survey on Willmore immersions.
In Geometry and Topology of Submanifolds, IV (Leuven, 1991),
pp 11-16. World Sci. Pub., 1992.