@ARTICLE{Hammami_Mohamed_Ali_An_2013, author={Hammami, Mohamed Ali and Zribi, Mohamed and Kallel, Jalel}, number={No 1}, journal={Archives of Control Sciences}, howpublished={online}, year={2013}, publisher={Committee of Automatic Control and Robotics PAS}, title={An exponential observer and a controller for a class of nonlinear systems}, URL={http://www.journals.pan.pl/Content/84263/PDF/5.pdf}, doi={10.2478/v10170-011-0043-x}, }