Al-Ani, Laith A. “An Improved Method for the Determination of Airplane Radial Velocity Using Doppler Shift”. Iraqi Journal of Physics 8, no. 13 (December 1, 2010): 89–96. Accessed June 2, 2026. https://www.ijp.uobaghdad.edu.iq/index.php/physics/article/view/834.