KHALIF, Muhammad Ardhi. Lorentz Group Action on Ellips Space. Journal of Natural Sciences and Mathematics Research, [S. l.], v. 1, n. 2, p. 55–57, 2017. Disponível em: https://journal.walisongo.ac.id/index.php/JNSMR/article/view/1602. Acesso em: 4 jun. 2025.