[1] T. E. Cecil and P. J. Ryan:
Tight and taut immersions of manifolds. Pitman Adv. Publ. Program, 1985.
MR 0781126
[6] N. H. Kuiper:
Tight embeddings and maps, submanifolds of geometrical class three in $E^N$. The Chern Symposium, Springer (1979), 97–145.
MR 0609559
[12] M. Morse and S. S. Cairns:
Critical point theory in global analysis and differential topology. Acad. Press, New York, 1969.
MR 0245046
[13] R. S. Palais and C. L. Terng:
Critical point theory and submanifold geometry. Springer, 1988.
MR 0972503
[16] T. J. Willmore:
Total curvature in Riemannian geometry. Ellis Horwood Ltd., West Sussex, England, 1982.
MR 0686105 |
Zbl 0501.53038