1. Alfred V. Aho, John E. Hopcrof t, and Jefrrey D. Ullman. Data structures and algorithms. Addison-Wesley, 1987.
2. D. Backé. Umdruck zur Vorlesung Servohydraulik. Technical report, Institut für hydraulische und pneumatische Antriebe und Steuerungen, RWTH Aachen, 1992.
3. François E. Cellier. Continuous System Modeling. Springer-Verlag, 1991.
4. François E. Cellier and Hilding Elmquist. Automated formula manipulation supports object-oriented continuous-system modeling. IEEE Control Systems, pages 28–38, April 1993.
5. Hilding Elmquist. A structured modellanguage for large continuous systems. PhD thesis, Department of Automatic control, Lund Institute of Technology, 1978.