doi:10.1016/j.peva.2007.06.026
Copyright © 2007 Elsevier Ltd All rights reserved.
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Marco Ajmone Marsana,
, Guest Editors, Christoph Lindemannb,
and Prashant Shenoyc, 
aPolitecnico di Torino, Dipartimento di Elettronica, Corso Duca degli Abruzzi 24, 10129 Torino, Italy
bUniversity of Leipzig, Chair for Computer Networks and Distributed Systems, Augustusplatz 10-11, 04109 Leipzig, Germany
cUniversity of Massachusetts Amherst, Department of Computer Science, 140 Governors Drive, Amherst, MA 01003, USA
Available online 1 July 2007.