S. Watanabe, J. Hershey, Y. Marks, Tim K. Fujii, и Y. Koji. Proceedings of INTERSPEECH 2014, 15th Annual Conference of the International Speech Communication Association, Singapore, стр. 323-327. (2014)
S. Römer, J. Mayer, F. Schweiggert, M. Maier, и T. Vollmer. Proceedings of the 25th conference on IASTED International Multi-Conference: Software Engineering, стр. 183--191. Anaheim, CA, USA, ACTA Press, (2007)