List of Articles Salah Khalfallah Article 1 - Vibration of Timoshenko Beam-Soil Foundation Interaction by Using the Spectral Element Method 20.1001.1.20083505.2020.12.3.9.9 10.22034/jsm.2020.1879476.1503 S Hamioud S Khalfallah S Boudaa Journal of Solid Mechanics , Issue 4 , Year , Summer 2020