Ahmad Al Hanbali Arzad Alam Kherani Philippe Nain Simple Models for the Performance Evaluation of a Class of Two-Hop Relay Protocols. 191-202 2007 conf/networking/2007 Networking http://dx.doi.org/10.1007/978-3-540-72606-7_17 db/conf/networking/networking2007.html#HanbaliKN07