1. N. Afzal, V. Pekar, Unsupervised relation extraction for automatic generation of multiple-choice questions, in: Proceedings of the International Conference RANLP-2009, Association for Computational Linguistics, Borovets, Bulgaria, 2009, pp. 1–5.
2. E. Pianta, C. Girardi, R. Zanoli, The TextPro Tool Suite, in: Proceedings of the 6th International Conference on Language Resources and Evaluation (LREC׳08), Marrakech, Morocco, 2008, pp. 28–30.
3. A. Alicante, A. Corazza, F. Isgrò, S. Silvestri, Unsupervised information extraction from Italian clinical records, in: Proceedings of Innovation in Medicine and Healthcare 2014, Studies in Health Technology and Informatics, vol. 207, IOS Press, San Sebastian, Spain, 2014, pp. 340–349.
4. P.A. Bonatti, L. Sauro, A confidentiality model for ontologies, in: International Semantic Web Conference (1), Lecture Notes in Computer Science, vol. 8218, Springer, Sydney, Australia, 2013, pp. 17–32.
5. A. Alicante, A. Corazza, Barrier features for classification of semantic relations, in: Proceedings of the 8th Recent Advances in Natural Language Processing, Association for Computational Linguistics, Hissar, Bulgaria, 2011, pp. 509–514.