Ali, Amjad, and Israr Ahmad. “Killing Vector Fields on the Lorentzian Manifold of Non-Static Special Axially Symmetric Space-Time”. International Journal of Sciences: Basic and Applied Research (IJSBAR) 24, no. 5 (November 6, 2015): 103–110. Accessed July 3, 2024. https://gssrr.org/index.php/JournalOfBasicAndApplied/article/view/4673.