Matthew Smith Matthias Schmidt Niels Fallenbeck Tim Dörnemann Christian Schridde Bernd Freisleben 315-325 2009 25 Future Generation Comp. Syst. 3 http://dx.doi.org/10.1016/j.future.2008.03.002 db/journals/fgcs/fgcs25.html#SmithSFDSF09