SHAKENOV, M.; CHECHIN, L. DOUBLE GALAXIES AND THE DARK MATTER. Recent Contributions to Physics, [S. l.], v. 2018, n. 3, p. 26–35, 2018. Disponível em: https://bph.kaznu.kz/index.php/zhuzhu/article/view/1015. Acesso em: 10 feb. 2026.