Sertić, Antun, Tomislav Mlinarić, and Zvonko Kavran. “Possibility of Identification of Permanent Way and Train Undercarriage Affecting Railway Traffic Safety”. Promet - Traffic&Transportation 11, no. 1 (October 11, 2012): 1–10. Accessed August 26, 2025. https://traffic2.fpz.hr/index.php/PROMTT/article/view/2309.