Xin Yao Edmund K. Burke José Antonio Lozano Jim Smith Juan J. Merelo Guervós John A. Bullinaria Jonathan E. Rowe Peter Tiño Ata Kabán Hans-Paul Schwefel Parallel Problem Solving from Nature - PPSN VIII, 8th International Conference, Birmingham, UK, September 18-22, 2004, Proceedings 3242 3-540-23092-0 PPSN Lecture Notes in Computer Science Springer 2004 db/conf/ppsn/ppsn2004.html