Atalla, S., Tarapiah, S., El Hendy, M., & Bin Hashim, K. F. (2022). Smart Algorithms for Hierarchical Clustering in Optical Network. International Journal of Communication Networks and Information Security (IJCNIS), 8(2). https://doi.org/10.17762/ijcnis.v8i2.1943 (Original work published August 24, 2016)