Novomeská, Jana, and Peter Patek. “Cash Lfow Analysis of River Cargo Ship Projected for Possibility of Pushing Towage”. Communications - Scientific letters of the University of Zilina 1, no. 3 (September 30, 1999): 56-65. Accessed April 6, 2026. http://journals.uniza.sk/index.php/communications/article/view/132.