If you use ixaKat tools, please cite the following paper in your academic work:

Arantxa Otegi, Nerea Ezeiza, Iakes Goenaga and Gorka Labaka. A Modular Chain of NLP Tools for Basque. In Proceedings of the 19th International Conference on Text, Speech and Dialogue - TSD 2016, Brno, Czech Republic, volume 9924 of Lecture Notes in Artificial Intelligence, pp. 93-100. 2016