@article{Lin2018Column,
    author = {R. Lin and S. Luo and J. Zhou and S. Wang and B. Chen and X. Zhang and A. Cai and W.-D. Zhang and M. Zukerman},
    title = {Column Generation Algorithms for Virtual Network Embedding in Flexi-grid Optical Networks},
    journal = {Optical Express},
    volume = {26},
    number = {8},
    pages = {10898-10913},
    month = {April},
    year = {2018}
}