Y. K. Lin and H. T. Hsieh and F. Y. Hsieh, Unrelated Parallel Machines Scheduling Problem Using an Ant Colony Optimization Approach. journal = {International Journal of Industrial and Manufacturing Engineering}, [online]. World Academy of Science, Engineering and Technology. August 2012, vol. 68(8). 1727 - 1732 [viewed 21 September 2024]. Available from: https://publications.waset.org/pdf/15712.