Nabavi-Chashmi, S. , Asadi, D. , Ahmadi, K. , Demir, E.. "Image-Based UAV Vertical Distance and Velocity Estimation Algorithm during the Vertical Landing Phase Using Low-Resolution Images". World Academy of Science, Engineering and Technology, Open Science Index 193, International Journal of Aerospace and Mechanical Engineering (2023), 17(1), 28 - 35.