E. Arroyo, A. Fay, M. Chioua, and M. Hoernicke. Proceedings of the 2014 IEEE Emerging Technology and Factory Automation (ETFA), page 1--8. IEEE, (2014)
A. Balali Moghaddam, J. Svendsen, M. Tory, and A. Branzan Albu. Proceedings of the 2011 annual conference extended abstracts on Human factors in computing systems, page 2347--2352. New York, NY, USA, ACM, (2011)