Bichajło, Lesław, and Tadeusz Sandecki. “The Influence of Design and Equipment of the Bridge With Approaches on driver’s Visual Perception”. Roads and Bridges - Drogi I Mosty, vol. 6, no. 3, Apr. 2007, pp. 23-43, https://rabdim.pl/index.php/rb/article/view/v6n3p23.