BULLOUGH, John D.; LIU, Xiang. Assessing the visibility of raised pavement markers and alternative forms of delineation. Transport, [S. l.], v. 35, n. 1, p. 98–107, 2020. DOI: 10.3846/transport.2020.12072. Disponível em: https://journals.vilniustech.lt/index.php/Transport/article/view/12072. Acesso em: 16 may. 2025.