1.  Knowledge-based approaches to self-adaptation in cultural algorithms
     Chan-Jin Chung, Wayne State University(January 1, 1997).
     http://digitalcommons.wayne.edu/dissertations/AAI9725822/
     http://portal.acm.org/citation.cfm?id=269345


2.  Using knowledge-based evolutionary computation to solve nonlinear constraint optimization problems: a cultural algorithm approach
     Xidong Jin;   Reynolds, R.G.;
     This paper appears in: Evolutionary Computation, 1999. CEC 99. Proceedings of the 1999 Congress on
     http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=785475&abstractAccess=no&userType=inst