Media type: E-Article Title: Parallel Problem Solving from Nature — PPSN IV: Evolutionary computing in multi-agent environments: Speciation and symbiogenesis Contributor: Bull, Lawrence; Fogarty, Terence C. imprint: Springer Berlin Heidelberg, 1996 Published in: Parallel Problem Solving from Nature — PPSN IV Language: Not determined DOI: 10.1007/3-540-61723-x_965 ISSN: 0302-9743; 1611-3349 Origination: Footnote: