Piotr Gorzelanczyk, Michał Strzebiński, and Piotr Stanowski. 2024. “Research on Punctuality of Public Transport Benchmarking the Polish National Railways”. Journal of Sustainable Manufacturing in Transportation 4 (1): 26-42. https://penerbit.uthm.edu.my/ojs/index.php/jsmt/article/view/17001.