Ali Essam El Shazly, Spatial Structure of First-Order Voronoi for the Future of Roundabout Cairo since 1867. journal = {International Journal of Architectural and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology. November 2015, vol. 108(12). 1546 - 1555 [viewed 20 April 2024]. Available from: https://publications.waset.org/pdf/10003103.