1
by Hofer, Helmut, Zehnder, Eduard
Published 1994
Birkhäuser Basel
Subjects: '; ...Global differential geometry...

2
by Hofer, Helmut, Zehnder, Eduard
Published 2011
Springer Basel
Subjects: '; ...Differential Geometry...

3
by Abbas, Casim, Hofer, Helmut
Published 2019
Springer International Publishing
Table of Contents: '; ...An Introduction to Contact Geometry -- Basic Results -- Surfaces in Three Dimensional Contact...