@INPROCEEDINGS{VanAst2009FuzzyAntColony, author = {J.M. van Ast and R. Babu\v{s}ka and B. {De Schutter}}, title = {Fuzzy Ant Colony Optimization for Optimal Control}, booktitle = {Proceedings American Control Conference ({ACC 2009})}, year = {2009}, pages = {1003--1008}, address = {Saint Louis, MO, USA}, month = jun }