Giorgos Dimitrakopoulos Christos Mavrokefalidis Costas Galanopoulos Dimitris Nikolos An Energy-Delay Efficient Subword Permutation Unit. 245-252 2006 conf/asap/2006 ASAP http://doi.ieeecomputersociety.org/10.1109/ASAP.2006.10 db/conf/asap/asap2006.html#DimitrakopoulosMGN06