T. Niebler, M. Becker, D. Zoller, S. Doerfel, and A. Hotho. Proceedings of the 25th ACM International on Conference on Information and Knowledge Management, New York, NY, USA, ACM, (2016)forthcoming.
A. Torbati, and J. Picone. Cognitive Methods in Situation Awareness and Decision Support (CogSIMA), 2013 IEEE International Multi-Disciplinary Conference on, page 114-117. (February 2013)
M. Loetzsch, M. Risler, and M. Jüngel. Proceedings of the IEEE/RSJ International Conference on Intelligent
Robots and Systems (IROS 2006), page 5124-5129. Beijing, (October 2007)