@ARTICLE{VanAst2009NovelAntColony,
author = {J.M. van Ast and R. Babu\v{s}ka and B. {De Schutter}},
title = {Novel Ant Colony Optimization Approach to Optimal Control},
journal = {International Journal of Intelligent Computing and Cybernetics},
year = {2009},
volume = {2},
pages = {414--434},
number = {3},
}