Brigitte D'Andréa-Novel, Michel Fliess, Cédric Join, Hugues Mounier, Bruno Steux. A mathematical explanation via "intelligent" PID controllers of the strange ubiquity of PIDs.
18th Mediterranean Conference on Control and Automation, MED'10, Jun 2010, Marrakech, Morocco. pp.CDROM, 2010,
〈10.1109/med.2010.5547700 〉.
〈inria-00480293v2〉