L. Ma, G. Xu, and N. Mastorakis. Proceedings of the 15th WSEAS International Conference on Systems, page 29--34. Stevens Point, Wisconsin, USA, World Scientific and Engineering Academy and Society (WSEAS), (2011)
X. Xu, Q. Lu, L. Zhu, Z. Li, S. Sakr, H. Wada, and I. Webber. Proceedings of the 4th International ACM Sigsoft Symposium on Architecting Critical Systems, page 11--16. New York, NY, USA, ACM, (2013)