@ARTICLE {23717,
author={D. Moniz and A. Eira and A. F. Sousa and J. J. O.  Pires},
doi={},
journal={Optical Switching and Networking},
title={On the comparative efficiency of non-disruptive defragmentation techniques in flexible-grid optical networks},
year={2017},
month={July},
volume={25},
number={-},
pages={149-159},
ISSN={1573-4277}
}