TRACZ, Marian; KIEĆ, Mariusz. Development and upgrading of two-lane single road network in Poland. Roads and Bridges - Drogi i Mosty, [S. l.], v. 15, n. 3, p. 191–206, 2016. DOI: 10.7409/rabdim.016.012. Disponível em: https://rabdim.pl/index.php/rb/article/view/v15n3p191. Acesso em: 3 jul. 2024.