Opala, Michał. “Study of the Derailment Safety Index Y Q of the Low-Floor Tram Bogies With Different Types of Guidance of Independently Rotating Wheels”. Archives of Transport 38, no. 2 (June 30, 2016): 39–47. Accessed July 3, 2024. https://archivesoftransport.com/index.php/aot/article/view/597.