H. Bannai, M. Giraud, K. Kusano, W. Matsubara, A. Shinohara, and J. Simpson. Stringology, page 178-181. Prague Stringology Club, Department of Theoretical Computer Science, Faculty of Information Technology, Czech Technical University in Prague, (2010)
R. Bogacz, M. Brown, and C. Giraud-Carrier. Emergent Neural Computational Architectures Based on Neuroscience, volume 2036 of Lecture Notes in Computer Science, page 428-441. Springer, (2001)