Balluchi, A., L. Benvenuti, M. D. Di Benedetto, and A. L. Sangiovanni–Vincentelli. “The Design of Dynamical Observers for Hybrid Systems: Theory and Application to an Automotive Control Problem”. Department of Computer and System Sciences Antonio Ruberti Technical Reports, vol. 4, no. 1, Feb. 2012, https://rosa.uniroma1.it/rosa00/index.php/dis_technical_reports/article/view/9647.