?url_ver=Z39.88-2004&rft_id=10.1109%2FQEST.2007.34&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aufirst=Mirco&rft.aulast=Tribastone&rft.au=Tribastone%2C+Mirco&rft.isbn=978-0-7695-2883-0+&rft.title=The+PEPA+Plug-in+Project&rft.btitle=Proceedings+of+the+4th+International+Conference+on+the+Quantitative+Evaluation+of+Systems.+QEST+2007&rft.date=September+2007&rft.genre=bookitem