1. Romano, E., Santillo, L.C., Zoppoli, P.: WSEAS Transactions on Systems and Control 4(2), 65–76 (2009)
2. Torcianti, B., Cristalli, C., Vass, J.: Proc. 6th IEEE Int. Symp. SDEMPED 2007, Cracow, Poland, pp. 297–301 (2007)
3. Cesetti, A., Scotti, C.P., Di Buń, G., Angione, G., Lattanzi, L., Cristalli, C., Longhi, S.: 6th annual IEEE Conf. on Automation Science and Engineering, Toronto, Canada, pp. 855–860 (2010)
4. Castellini, P., Bruni, A., Paone, N.: Optical Measurement Systems for Industrial Inspection V, Proceedings, vol. 6616, Munich, Germany (2007)
5. Denise, F.R., Damaschini, B.: Applied Optics 35(7), 1161–1166 (1996)