Liang Zhao Juan C. G. Cáceres Antonio P. G. Damiance Harold Szu Chaotic dynamics for multi-value content addressable memory. 1628-1636 2006 69 Neurocomputing 13-15 http://dx.doi.org/10.1016/j.neucom.2005.05.012 db/journals/ijon/ijon69.html#ZhaoCDS06