Alrehamy, Hassan H; Walker, Coral (2018). “SemCluster: Unsupervised Automatic Keyphrase Extraction Using Affinity Propagation”. Advances in Computational Intelligence Systems. Advances in Intelligent Systems and Computing. 650. tr. 222–235. doi:10.1007/978-3-319-66939-7_19. ISBN978-3-319-66938-0.