1. Åström, K. Introduction to stachastic control theory. New York, Academic Press, 1970.
2. Cellier, F. Continuous system modeling. Springer, New York, 1991.
3. Eykhoff, P. System identification. John Wiley, London, 1974.
4. Gawthrop, P. and Smith, L. Metamodelling: bond graphs and dynamic systems. Prentice Hall, Hemel Hempstead, 1996.
5. Haber, R. and Unbehauen, H. Structure identification of nonlinear dynamic systems-a survey on input/output approaches. Automatica, 26(4):651–677, 1990.