N. Alkallak I, Z. Sha’ban R. A Survey of Two Optimization Methods to Solve a Modified Minimal Spanning Tree Problem in Undirected Tree Graph. RJCSM [Internet]. 2011 Jun. 2 [cited 2025 Sep. 28];8(1):117-34. Available from: https://csmj.uomosul.edu.iq/index.php/csmj/article/view/36887