Kovač-Striko, E., Rakić, E. and Andabaka, G. (2012) “Application of Pareto’s Method in Analysing Postal Service Quality”, Promet - Traffic&Transportation, 13(5), pp. 315–321. Available at: https://traffic2.fpz.hr/index.php/PROMTT/article/view/1962 (Accessed: 27 August 2025).