?url_ver=Z39.88-2004&rft_id=10.1007%2F3-540-53479-2_17&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=De+Nicola%2C+Rocco&rft.aulast=De+Nicola&rft.aufirst=Rocco&rft.isbn=3-540-53479-2&rft.btitle=Semantics+of+Systems+of+Concurrent+Processes&rft.title=Action+versus+State+based+Logics+for+Transition+Systems&rft.date=1990&rft.genre=bookitem