AL-TA'IY, Ban Jaffar. - NIELSEN COINCIDENCE POINT THEORY. Al-Nahrain Journal of Science, [S. l.], v. 12, n. 3, p. 161–166, 2018. Disponível em: https://mail.anjs.edu.iq/index.php/anjs/article/view/1223. Acesso em: 22 may. 2026.