VÁRSZEGI, Balázs; TAKÁCS, Dénes. Downhill Motion of the Skater-Skateboard System. Periodica Polytechnica Mechanical Engineering, [S. l.], v. 60, n. 1, p. 58–65, 2016. 10.3311/PPme.8636. Disponível em: https://www.pp.bme.hu/me/article/view/8636. Acesso em: 4 sep. 2026.