S. Mukherjee, S. Chattaraj, D. Prasad, R. P. Singh, M. I. Khan, and H. Agarwal "Development of Hexa Spacer Damper for 765 kV Transmission Lines’ Vibration Damping", Advances in Science, Technology and Engineering Systems Journal, vol. 6, no. 1, pp. 472–478, 2021, doi: 10.25046/aj060151.