GRABOWSKI, Ryszard J. Turbo-roundabouts as an alternative to standard roundabouts with the circular centre island. Roads and Bridges - Drogi i Mosty, [S. l.], v. 11, n. 3, p. 215–231, 2012. Disponível em: https://rabdim.pl/index.php/rb/article/view/v11n3p. Acesso em: 12 jul. 2024.