M. Kibanov, M. Atzmueller, C. Scholz, und G. Stumme. Green Computing and Communications (GreenCom), 2013 IEEE and Internet of Things (iThings/CPSCom), IEEE International Conference on and IEEE Cyber, Physical and Social Computing, Seite 993-1000. (August 2013)
F. Shipman, III, C. Marshall, und M. LeMere. Proceedings of the tenth ACM Conference on Hypertext and hypermedia : returning to our diverse roots: returning to our diverse roots, Seite 121--130. New York, NY, USA, ACM, (1999)