Casau P., Sanfelice R.G, Cunha R., Cabecinhas D., Silvestre C..  2013.  Global Trajectory Tracking for a Class of Underactuated Vehicles. Proceedings of the American Control Conference. :419–424.

Casau P., Mayhew C.G, Sanfelice R.G, Silvestre C..  2015.  Global Exponential Stabilization on the $n$-Dimensional Sphere. To appear in Proceedings of the American Control Conference.

Casau P., Sanfelice R.G, Cunha R., Silvestre C..  2015.  A Globally Asymptotically Stabilizing Trajectory Tracking Controller for Rigid Bodies using only Landmark-based Information. To appear in the International Journal of Robust and Nonlinear Control.