W. Kunikowski, P. Olejnik, and J. Awrejcewicz, “A Fuzzy Logic PI Trajectory Following Control in a Chaotically Loaded Real Mechatronic Dynamical System with Stick-Slip Friction”, JVTSD, vol. 2, no. 2, pp. 91–107, Aug. 2026, doi: 10.5890/JVTSD.2018.06.001.