Y. Jung, J. Yoo, S. Myaeng, и D. Han. Web Information Systems Engineering - WISE 2008, том 5175 из Lecture Notes in Computer Science, Springer Berlin Heidelberg, (2008)
P. Sangameshwar, и G. Palshikar. Natural Language Processing and Information Systems, 18th International Conference on Applications of Natural Language to Information Systems, том 7934 из Lecture Notes in Computer Science, стр. 417-420. Springer Berlin Heidelberg, (2013)