Rao, Sanagapallea Koteswara. “Criteria for Selection of Frequency of Electromagnetic Radiation for Underwater Proximity Fuzes”. Defence Science Journal 41, no. 2 (January 1, 2013): 157–164. Accessed August 20, 2025. https://publications.drdo.gov.in/ojs/index.php/dsj/article/view/4422.