Uncertainty and Control : Proceedings of an International Seminar Organized by Deutsche Forschungs und Versuchsanstalt für Luft und Raumfahrt (DFVLR) Bonn Germany May 1985 Uncertainty and control some activities at DFVLR System identification Uncertainty models and the design of robust control systems Multi model approaches to robust control system design Adaptive control — A way to deal with uncertainty Optimality in adaptive control systems Intelligent control operating systems in uncertain environments.