خليل عمر نبيل; عبد العزيز سحر. في التقنية الهشية. Iraqi Journal for Computers and Informatics, [S. l.], v. 3, n. 2, p. 57–79, 1978. DOI: 10.25195/ijci.v3i2.130. Disponível em: https://ijci.uoitc.edu.iq/index.php/ijci/article/view/130. Acesso em: 18 jun. 2026.