?url_ver=Z39.88-2004&rft_id=10.1016%2F0304-3975(90)90095-Y&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Degano%2C+Pierpaolo&rft.aulast=Degano&rft.aufirst=Pierpaolo&rft.issue=3&rft.pages=223-262&rft.volume=75&rft.date=1990&rft.atitle=A+Partial+Ordering+Semantics+for+CCS&rft.title=Theoretical+Computer+Science&rft.issn=0304-3975&rft.genre=article