ALI, A.; UR REHMAN, A. Classification of Cylindrically Symmetric Marder Type Spacetimes According to Their Proper Homothetic Vector Fields. International Journal of Sciences: Basic and Applied Research (IJSBAR), [S. l.], v. 25, n. 3, p. 13–19, 2016. Disponível em: https://gssrr.org/index.php/JournalOfBasicAndApplied/article/view/5247. Acesso em: 3 may. 2024.