Cenek, Petr, Jaroslav Janacek, and Ludmila Janosikova. “Location of Transportation Districts at Modeling of Transportation Processes in a Region”. Communications - Scientific letters of the University of Zilina 4, no. 1-2 (June 30, 2002): 5-9. Accessed April 6, 2026. http://journals.uniza.sk/index.php/communications/article/view/1384.