Sider, A. K., Sikder, N., Gandhe, B. R., Agrawal, J. P., & Singh, H. (2002). Hexanitrohexaazaisowurtzitane or CL-20 in India: Synthesis and Characterisation. Defence Science Journal, 52(2), 135–146. https://doi.org/10.14429/dsj.52.2158