?url_ver=Z39.88-2004&rft_id=10.1016%2Fj.entcs.2009.07.071&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=Rocco&rft.aulast=De+Nicola&rft.au=De+Nicola%2C+Rocco&rft.issn=1571-0661&rft.title=Electronic+Notes+in+Theoretical+Computer+Science&rft.atitle=MarCaSPiS%3A+a+Markovian+Extension+of+a+Calculus+for+Services&rft.date=2009&rft.volume=229&rft.issue=4&rft.pages=11-26&rft.genre=article