?url_ver=Z39.88-2004&rft_id=10.1016%2Fj.entcs.2004.10.030&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=GianLuigi&rft.aulast=Ferrari&rft.au=Ferrari%2C+GianLuigi&rft.title=Electronic+Notes+in+Theoretical+Computer+Science&rft.atitle=A+Logic+for+Graphs+with+QoS&rft.date=January+2006&rft.volume=142&rft.pages=143-160&rft.issn=1571-0661&rft.genre=article