TOLLAZZI, Tomaž; RENČELJ, Marko; TURNŠEK, Sašo. New Type of Roundabout: Roundabout with “Depressed” Lanes for Right Turning – “Flower Roundabout”. Promet - Traffic&Transportation, [S. l.], v. 23, n. 5, p. 353–358, 2012. DOI: 10.7307/ptt.v23i5.153. Disponível em: https://traffic2.fpz.hr/index.php/PROMTT/article/view/1419. Acesso em: 26 aug. 2025.