Konrad Iwanicki Maarten van Steen Spyros Voulgaris Gossip-Based Clock Synchronization for Large Decentralized Systems. 28-42 2006 conf/selfman/2006 SelfMan http://dx.doi.org/10.1007/11767886_3 db/conf/selfman/selfman2006.html#IwanickiSV06