1. Franke, D.: Control of Bilinear Distributed Parameter Systems. In I. Hartmann (Ed.): Advances in Control Systems and Signal Processing, Vol. 1, Vieweg Braunschweig/Wiesbaden 1980, Contribution I, pp. 1–113.
2. Franke, D.: Control of Distributed Parameter Systems with Independent Linear and Bilinear Modes. Preprints of the Third IMA-Conference on Control Theory, Sheffield/England, Sept. 1980.
3. Franke, D.: Synthesis of Variable Structure Feedback Control of Distributed Parameter Systems. Preprints of the Joint Workshop on Feedback and Synthesis of Linear and Nonlinear Systems, Bielefeld/Rome. Part II, Univ. of Rome 1981.
4. Franke, D.: Variable structure control without sliding modes (in German). Regelungstechnik 30 (1982). To appear.
5. Franke, D.: Exhausting bounds on control by means of soft variable structure control (in German). Regelungstechnik 30 (1982). To appear.