@ARTICLE{
author={Teodorovic Dusan B|,Lucic Panta|},
year={2007},
title={The Fuzzy Ant System for the vehicle routing problem when demand at nodes is uncertain},
journal={INTERNATIONAL JOURNAL ON ARTIFICIAL INTELLIGENCE TOOLS},
volume={16},
number={5},
pages={751-770},
document_type={Article},
} 

@ARTICLE{
author={Lucic Panta|,Teodorovic Dusan B|},
year={2007},
title={Metaheuristics approach to the aircrew rostering problem},
journal={ANNALS OF OPERATIONS RESEARCH},
volume={155},
number={1},
pages={311-338},
document_type={Article},
}