Recursive state estimation in nonlinear processes. - Pramod Vachhani; Shankar Narasimhan; Raghunathan Rengaswamy (ACC, 2004)

New nonlinear residual feedback observer for fault diagnosis in nonlinear systems. - Sridharakumar Narasimhan; Pramod Vachhani; Raghunathan Rengaswamy (Autom., 2008)