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1. How Single Ant ACO Systems Optimize Pseudo-Boolean Functions
   Benjamin Doerr, Daniel Johannsen, and Ching Hoo Tang
   In: Parallel Problem Solving from Nature – PPSN X, Dortmund, Germany, 2008, 378-388
   [PDF: Download: DoerrJohannsenTang_HowSingleAntACOSystemsOptimizePseudo-BooleanFunctions.pdf] [PDF: Download: DoerrJohannsenTang_Appendix_HowSingleAntACOSystemsOptimizePseudo-BooleanFunctions.pdf]