Amine, A., Elberrichi, Z., Simonet, M., & Malki, M. (2008). Evaluation and Comparison of Concept Based and N-Grams Based Text Clustering Using SOM. INFOCOMP Journal of Computer Science, 7(1), 27–35. Retrieved from http://177.105.60.18/index.php/infocomp/article/view/203