Z. Machacek, R. Slaby, J. Vanus, R. Hercik, and J. Koziorek, “Non-Contact Measurement System Analysis for Metallurgical Slabs Proportion Parameters”, ELEKTRON ELEKTROTECH, vol. 19, no. 10, pp. 58–61, Dec. 2013, doi: 10.5755/j01.eee.19.10.5897.