Kamal Ghamry Metwally, Ahmed Gamal Hassan, Ahmed Abdelmoamen Khalil, Ibrahim Ramadan. INVESTIGATION OF USING A BITUMINOUS SUB-BALLAST LAYER TO ENHANCE THE STRUCTURAL BEHAVIOR OF HIGHSPEED BALLASTED TRACKS. INTERNATIONAL JOURNAL OF GEOMATE [Internet]. 2020 Nov. 28 [cited 2024 Apr. 27];19(75):122-3. Available from: https://geomatejournal.com/geomate/article/view/1723