Goswami, A. ., P. . Sadhu, and P. K. . Sadhu. “Hybrid K Based Influential Parameter Determination and Design Optimization of 220 KV High Voltage Insulator”. Elektronika Ir Elektrotechnika, vol. 25, no. 4, Aug. 2019, pp. 23-28, doi:10.5755/j01.eie.25.4.23966.