H∞ Tracking Control of Non-lower Triangular Nonlinear Systems: Coronary Artery SystemEl khaloufi Ghizlane, Chaibi Noreddine, Belamfedel Alaoui Sadek, Boumhidi Ismail and Darouiche Fatima ZahraE3S Web of Conf., 469 (2023) 00074DOI: https://doi.org/10.1051/e3sconf/202346900074