S. Chi, C. Vogel, and P. Singerl. Proceedings of the IEEE International Conference on Electronics, Circuits, and Systems (ICECS 2010), page 685--688. (December 2010)
M. Sutaone, P. Bartakke, V. Vyas, and N. Pasalkar. TENCON 2003. Conference on Convergent Technologies for Asia-Pacific
Region, 1, page 235--238. IEEE Computer Society, (2003)