Cuong D. Dao and  Rob J.I. Basten and  Andreas Hartmann,  Optimal Maintenance Clustering for Rail Track Components Subject to Possession Capacity Constraints.   journal   = {International Journal of Architectural and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology.
    April 2017, vol. 126(6). 752 - 756
    [viewed 05 May 2024]. Available from: https://publications.waset.org/pdf/10007265.