Quotient method for controlling the acrobot. - Sudarsandhari Shibani Willson; Philippe Müllhaupt; Dominique Bonvin (CDC, 2009)

Avoiding feedback-linearization singularity using a quotient method - The field-controlled DC motor case. - Sudarsandhari Shibani Willson; Philippe Müllhaupt; Dominique Bonvin (ACC, 2012)

Quotient method for stabilising a ball-on-a-wheel system - Experimental results. - Sudarsandhari Shibani Willson; Killian Daly; Philippe Müllhaupt; Dominique Bonvin (CDC, 2012)

A quotient method for designing nonlinear controllers. - Sudarsandhari Shibani Willson; Philippe Müllhaupt; Dominique Bonvin (Eur. J. Control, 2013)