Y. S. Zhou and  C. R. Li and  L. L. Tang and  C. X. Gao and  D. J. Wang and  Y. Y. Guo,  Performance Analysis of New Types of Reference Targets Based on Spaceborne and Airborne SAR Data.   journal   = {International Journal of Economics and Management Engineering}, [online]. World Academy of Science, Engineering and Technology.
    March 2016, vol. 112(4). 1149 - 1153
    [viewed 14 April 2021]. Available from: https://publications.waset.org/pdf/10004188.