Spoorthi. N. M, Mrs. Venkata Sumana C. H. “Extraction of Bright & Dark Features of Buildings from VHR SAR Images & Detecting Them Automatically & 2-D Reconstruction of Radar Footprints”. International Journal of Research & Technology, vol. 2, no. 2, May 2014, pp. 60-61, https://ijrt.org/j/article/view/158.