Quan Le-Trung and Gabriele Kotsis, (2007), “Determining Link Cost of MANETs Cluster Routing Protocols Based on Power/Node-Density/Mobility Metrics,“ Journal on Information and Communication Technologies (ICTJ), Special Issues on Research, Development and Application on Electronics, Telecommunications and Information Technology, ISSN 0866-7039, No. 1, pp.45-51, 2007. (Invited from IEEE RIVF2007, Hanoi, Vietnam)