Nedostup, L., M. Kiselichnik, and Y. Bobalo. “Modelling of Defectivity of Sequential Structure Processes”. Elektronika ir Elektrotechnika 10, no. 1 (February 14, 1997). Accessed August 3, 2020. http://eejournal.ktu.lt/index.php/elt/article/view/15736.