Fabian Stäber Gerald Kunzmann Jörg P. Müller Extended Prefix Hash Trees for a distributed phone book application. 1-8 2007 ICPADS http://doi.ieeecomputersociety.org/10.1109/ICPADS.2007.4447735 conf/icpads/2007 db/conf/icpads/icpads2007.html#StaberKM07