Ye, Fan, Paul J. Carlson, and Bradford K. Brimley. “Applying the Sign Luminance Computation Model to Study the Effects of Other Vehicles on Sign Luminance”. Transport 29, no. 2 (June 30, 2014): 115–124. Accessed November 9, 2024. https://btp.vgtu.lt/index.php/Transport/article/view/1860.