1. SIMPLE-fying middlebox policy enforcement using SDN;Qazi,2013
2. Making middleboxes someone else’s problem: Network processing as a cloud service;Sherry,2012
3. Openbox: Enabling innovation in middlebox applications;Barr,2015
4. Optimal middlebox function placement in virtualized evolved packet core systems;Ko,2015
5. ETSI, Network function virtualisation-white paper1, SDN and openflow world congress, 2012, Darmstadt, Germany, [Online]. Available: http://portal.etsi.org/NFV/NFV_White_Paper.pdf.