Namboodiri, A. V., and G. V. Kulkarni. “Librations of a Quasi-Lagranghn Gyro”. Defence Science Journal 39, no. 2 (April 1, 2013): 133–145. Accessed July 19, 2025. https://publications.drdo.gov.in/ojs/index.php/dsj/article/view/4758.