Uhlmann, Julius. “Comparison of Road Traffic Death and Injury Rates at Pedestrian Crossings in Europe”. The Baltic Journal of Road and Bridge Engineering 16, no. 2 (June 21, 2021): 16–29. Accessed May 2, 2024. https://bjrbe-journals.rtu.lv/bjrbe/article/view/bjrbe.2021-16.521.