Kamiński, Bartłomiej, Marcin Nikoniuk, and Łukasz Drązikowski. “A Concept of Propulsion and Power Supply Systems for PRT Vehicles”. Archives of Transport 27, no. 3-4 (December 31, 2013): 81–93. Accessed April 3, 2025. https://archivesoftransport.com/index.php/aot/article/view/602.