@ARTICLE {31834,
author={M.  Hussain and K.  Reddy and J. R. Rodrigues and D.  Roy},
doi={10.1109/JSYST.2020.3011902},
journal={IEEE Systems Journal},
title={An Indirect Controller-Legacy Switch Forwarding Scheme for Link Discovery in Hybrid SDN},
year={2021},
month={June},
volume={15},
number={2},
pages={3142-3149},
ISSN={1932-8184}
}