[K4] N.H. Kuiper, "Tight embeddings and maps. Submanifolds
of geometrical class three in E^N", in Proceedings of
the Int. Symp. on Diff. Geom. in honor of S.-S. Chern,
Berkeley, June 1979, Springer-Verlag, NY, Heidelberg,
Berlin, 1980, 97-145.
This is an extensive modern survey of tightness and related results.
It includes some results for higher dimensions, and a large
bibliography.
10/12/94 dpvc@geom.umn.edu --
The Geometry Center