WASET
    B. O. Olawale and  C. R. Chatwin and  R. C. D. Young and  P. M. Birch and  F. O. Faithpraise and  A. O. Olukiran,  A Four-Step Ortho-Rectification Procedure for Geo-Referencing Video Streams from a Low-Cost UAV.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    July 2015, vol. 104(8). 1885 - 1892
    [viewed 25 April 2024]. Available from: https://publications.waset.org/pdf/10002021.