@ARTICLE {20220,
author={A.  Agra and A. F. Sousa and M.  Doostmohammadi},
doi={10.1109/TNET.2016.2544760},
journal={IEEE/ACM Transactions on Networking},
title={The Minimum Cost Design of Transparent Optical Networks Combining Grooming, Routing, and Wavelength Assignment},
year={2016},
month={December},
volume={24},
number={6},
pages={3702-3713},
ISSN={1063-6692}
}