Lê Doãn Trinh. “Longitudinal Slotted Waveguide Antenna With a Wide Frequency Sweep Angle”. Journal of Military Science and Technology, no. FEE (December 10, 2023): 92–96. Accessed January 26, 2026. https://jmst.mod.gov.vn/index.php/jmst/article/view/1037.