1. Berger, T.: On differential-algebraic control systems. Ph.D. Thesis, Institut für Mathematik, Technische Universität Ilmenau, Universitätsverlag Ilmenau (2014).
http://www.db-thueringen.de/servlets/DocumentServlet?id=22652
2. Berger, T.: Zero dynamics and stabilization for linear DAEs. In: Schöps, S., Bartel, A., Günther, M., ter Maten, E.J.W., Müller, P.C. (eds.) Progress in Differential-Algebraic Equations. Differential-Algebraic Equations Forum, pp. 21–45. Springer, Berlin (2014)
3. Berger, T.: Zero dynamics and funnel control of general linear differential-algebraic systems. ESAIM Control Optim. Calc. Var. 22(2), 371–403 (2016)
4. Berger, T., Rauert, A.L.: A universal model-free and safe adaptive cruise control mechanism. In: Proceedings of the MTNS 2018, pp. 925–932. Hong Kong (2018)
5. Berger, T., Reis, T.: Zero dynamics and funnel control for linear electrical circuits. J. Franklin Inst. 351(11), 5099–5132 (2014)