A. Sun, R. Grishman, W. Xu, und B. Min. Proceedings of the Fourth Text Analysis Conference (TAC 2011), National Institute of Standards and Technology (NIST), (November 2011)
K. Taghva, R. Beckley, und J. Coombs. Proceedings of the 19th International Conference on Conceptual Structures (ICCS 2011), Volume 6828 von Lecture Notes in Computer Science, Seite 339-345. Springer, (2011)