Bosurgi, Gaetano, Orazio Pellegrino, and Giuseppe Sollazzo. “Road Functional Classification Using Pattern Recognition Techniques”. The Baltic Journal of Road and Bridge Engineering 14, no. 3 (September 26, 2019): 360–383. Accessed May 5, 2024. https://bjrbe-journals.rtu.lv/bjrbe/article/view/bjrbe.2019-14.448.