@ARTICLE {18880,
author={M. Duarte and S. Oliveira and A. Christensen},
doi={10.1007/s10846-014-0086-x},
journal={Journal of Intelligent and Robotic Systems},
title={Evolution of Hybrid Robotic Controllers for Complex Tasks},
year={2015},
month={June},
volume={78},
number={3},
pages={464-484},
ISSN={0921-0296}
}