?url_ver=Z39.88-2004&rft_id=10.1145%2F201019.201032&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aulast=De+Nicola&rft.au=De+Nicola%2C+Rocco&rft.aufirst=Rocco&rft.issn=0004-5411&rft.title=J.+ACM&rft.issue=2&rft.atitle=Three+Logics+for+Branching+Bisimulation&rft.volume=42&rft.pages=458-487&rft.date=1995&rft.genre=article