@ARTICLE {10243,
author={A. Eira and J. M. Pedro and J. J. O.  Pires},
doi={10.1364/JOCN.7.000223},
journal={Journal of Optical Communications and Networking},
title={Optimal Multi-Period Provisioning of Fixed and Flex-Rate Modular Line Interfaces in DWDM Networks},
year={2015},
month={April},
volume={7},
number={4},
pages={223-234},
ISSN={1943-0620}
}