Christos, Chalepas, Papageorgiou Grigorios, Alamanis Nikolaos, Paschalis Evangelos, and Papadimitriou Emanouil. 2020. “Road Upgrading in Terms of Geometric and Functional Characteristics”. American Scientific Research Journal for Engineering, Technology, and Sciences 74 (2): 154-65. https://www.asrjetsjournal.org/American_Scientific_Journal/article/view/6510.