ظريف ع. الرؤية بوضوح واجتماع المجموعات شبه النجمية في R2. Latakia University Journal -Basic Sciences Series, [S. l.], v. 25, n. 1, 2018. Disponível em: https://journal.tishreen.edu.sy/index.php/bassnc/article/view/4909. Acesso em: 15 jan. 2025.