علي عسّاف; سليمان الخضر; ميساء شعبان. A study of gravitational field equation in general relativity. Tishreen University Journal -Basic Sciences Series, [S. l.], v. 44, n. 1, p. 131–142, 2022. Disponível em: https://journal.tishreen.edu.sy/index.php/bassnc/article/view/13326. Acesso em: 24 nov. 2024.