Paulo Fernando Silva Filho and Elcio Hideiti Shiguemori, Automatic Landmark Selection Based on Feature Clustering for Visual Autonomous Unmanned Aerial Vehicle Navigation. journal = {International Journal of Mechanical and Mechatronics Engineering}, [online]. World Academy of Science, Engineering and Technology. April 2018, vol. 137(5). 540 - 543 [viewed 19 September 2024]. Available from: https://publications.waset.org/pdf/10008999.