Condition monitoring for the quadruple water tank system using H-infinity Kalman FilteringGerasimos Rigatos, Dimitrios Serpanos, Vasilios Siadimas, Krishna Busawon, Zhiwei Gao, Pierluigi Siano and Masoud AbbaszadehMATEC Web Conf., 188 (2018) 05008DOI: https://doi.org/10.1051/matecconf/201818805008