Dan, Eduediuyai, Enyenihi Johnson, and Idorenyin Markson. “Analysis of the Effect of Variations in Refractivity Gradient on Line of Sight Percentage Clearance and Single Knife Edge Diffraction Loss”. International Journal of Sustainable Energy and Environmental Research 8, no. 1 (February 27, 2019): 1–9. Accessed November 23, 2024. https://archive.conscientiabeam.com/index.php/13/article/view/2130.