Sahar Yaseen, Basim, and Maha Alghalibi. “Innovative DNA Clustering-Based Hierarchy Tree Model to Cryptanalyze Shift Register Based-Stream Cipher”. Iraqi Journal for Electrical and Electronic Engineering, vol. 22, no. 1, June 2026, pp. 564-71, https://doi.org/10.37917/ijeee.22.1.50.