L. Ollinger, D. Zühlke, A. Theorin, и C. Johnsson. Proceedings of the 18th IEEE International Conference on Emerging Technologies and Factory Automation (ETFA 2013), Cagliari, Italy, (2013)
A. Kondeva, V. Aravantinos, L. Hermanns, и L. Hörauf. Proceedings of the 20th IEEE International Conference on Emerging Technologies and Factory Automation (EFTA 2015), Luxembourg, стр. a.1--a.4. (2015)
B. Brandherm, и A. Kröner. Proceedings of the Seventh International Conference on Intelligent Environments (IE 2011), Nottingham, UK, стр. 374--377. Los Alamitos, CA, IEEE Computer Society, (2011)