D. Sonntag, и M. Möller. Proceedings of the Sixth International Conference on Intelligent Environments (IE 2010), Kuala Lumpur, Malaysia, стр. 84--89. Los Alamitos, CA, IEEE Computer Society CPS, (2010)
I. Gurevych, S. Merten, и R. Porzel. Proceedings of the HLT-NAACL 2003 Workshop on Software Engineering and Architecture of Language Technology Systems (SEALTS), Edmonton, Canada, стр. 59-66. (2003)