[1] H. Hahn, W. Raasch: Multi-Axis Vibration test on spacecraft using hydraulic exciters. In: Proceedings of AGARD 397 (1098), 23-1 to 23-23.
[2] H. Hahn K.-D. Leimbach, X. Zhang: Theoretical modeling and control concept of a multi-axis servohydraulic test facility. In: Proceedings of IFAC Symposium LSS'92, Peking 1992.
[3] A. Isidori:
Nonlinear Control Systems: An Introduction. Springer Verlag, Berlin 1989, pp. 234-288.
MR 1015932
[4] J. J. Slotine, W. Li:
Applied Nonlinear Control. Prentice Hall, Englewood Cliffs 1991, pp. 207-271.
Zbl 0753.93036
[5] H. Schwarz: Nichtlineare Regelungssysteme. Oldenbourg Verlag, München 1991.