N. Amersi, O. Beckwith, S. Miller, R. Ronan, und J. Sondow. (2011)cite arxiv:1108.0475Comment: 13 pages, 2 tables, to appear in the CANT 2011 Conference Proceedings. This is version 2.0. Changes: fixed typos, added references to OEIS sequences, and cited Shevelev's preprint.
M. Khouadjia, E. Alba, L. Jourdan, und E. Talbi. Swarm Intelligence, Volume 6234 von Lecture Notes in Computer Science, Springer, Berlin / Heidelberg, (2010)
B. Ahmed, und K. Zamli. Volume 0 von Proceedings of the Electrical and Electronic Postgraduate Colloquium EEPC2009, Jawi, Malaysia, USM, University Sains Malaysia, (November 2009)