Rao, B.L.N., B. K. Roys, H. B. Mathur, and U. C. Gupta. “VHF Field Strength Measurements in Mountainous Terrain Study of Reflection Effects”. Defence Science Journal 14, no. 3 (May 9, 2014): 241–246. Accessed August 7, 2025. https://publications.drdo.gov.in/ojs/index.php/dsj/article/view/7156.