KOC, W. Designing the Railway Line Direction Changing Area in Linear and Cartesian Coordinate Systems. European Journal of Applied Sciences, [S. l.], v. 10, n. 4, p. 277–296, 2022. DOI: 10.14738/aivp.104.12691. Disponível em: https://journals.scholarpublishing.org/index.php/AIVP/article/view/12691. Acesso em: 6 may. 2024.