List of Articles Mobile Robots Open Access Article Abstract Page Full-Text 1 - Trajectory Tracking of Two-Wheeled Mobile Robots, Using LQR Optimal Control Method, Based On Computational Model of KHEPERA IV Amin Abbasi Ata Jahangir Moshayedi Open Access Article Abstract Page Full-Text 2 - Optimal Trajectory Planning of a Mobile Robot with Spatial Manipulator For Spatial Obstacle Avoidance مصطفی غیور مصطفی شریعتینیا