Convexity Properties of Graßmannians
In: Seminar Sophus Lie, Vol. 2.1992, page 13-20
Coupling of completely integrable systems
the perturbation bundleIn: Applications of analytic and geometric methods to nonlinear differential equations : [proceedings of the NATO Advanced Research Workshop on Applications of Analytic and Geometric Methods to Nonlinear Differential Equations, Exeter, U.K., July 14 - 19, 1992] (NATO ASI series : Series C, Computer and physical sciences : 413), Vol. 1993, page 125-138
