G.  Grioli, Catalano, M. G., Garabini, M., Bonomo, F., Serio, A., Salaris, P., Belo, F. A. W., Mancini, M., Bicchi, A., and Passaglia, A., ?Variable stiffness actuators: muscles for the next generation of robots?, in Automatica.it 2011, Pisa, Italy, 2011. 

D.  Fontanelli, Salaris, P., Belo, F. A. W., and Bicchi, A., ?Visual Servoing via Advanced Numerical Methods?, vol. 401, G.  Chesi and Hashimoto, K., Eds. Springer, 2010, pp. 335 - 360. 

D.  Fontanelli, Salaris, P., Belo, F. A. W., and Bicchi, A., ?Visual appearance mapping for optimal vision based servoing?, vol. 54 - Experimental Robotics, B.  Siciliano, Khatib, O., and Groen, F., Eds. Springer, 2009, pp. 353 - 362. 

D.  Fontanelli, Danesi, A., Belo, F. A. W., Salaris, P., and Bicchi, A., ?Visual Servoing in the Large?, International Journal of Robotics Research, vol. 28, pp. 802 - 814, 2009. 

P.  Salaris, Belo, F. A. W., Fontanelli, D., and Bicchi, A., ?Visual SLAM for Servoing for Appearance Based Topological Maps?, in Proc. Ints. Symp. Experimental Robotics, 2008, vol. 39/2008, pp. 277-286.