M. Helmy SAID. Transformation Equations for the Fifth Dimension. New Frontiers in Physical Science Research Vol. 8, [S. l.], p. 31–38, 2023. DOI: 10.9734/bpi/nfpsr/v8/18223D. Disponível em: https://stm.bookpi.org/NFPSR-V8/article/view/9685. Acesso em: 13 jun. 2026.