Ganapathi, M., B. P. Patel, S. S. Gupta, K. N. Khatri, C. T. Sambandam, and S. N. Giri. 2003. “Free-Vibration Characteristics of Laminated Angle-Ply Non-Circular Cylindrical Shells”. Defence Science Journal 54 (4):429-42. https://doi.org/10.14429/dsj.54.2057.