WASET
    Pedro F. Albuquerque and  Pedro V. Gamboa and  Miguel A. Silvestre,  Multidisciplinary and Multilevel Design Methodology of Unmanned Aerial Vehicles Using Enhanced Collaborative Optimization.   journal   = {International Journal of Aerospace and Mechanical Engineering}, [online]. World Academy of Science, Engineering and Technology.
    March 2015, vol. 100(4). 549 - 558
    [viewed 25 April 2024]. Available from: https://publications.waset.org/pdf/10000991.