?url_ver=Z39.88-2004&rft_id=10.1007%2F3-540-53487-3_53&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=De+Nicola%2C+Rocco&rft.aulast=De+Nicola&rft.aufirst=Rocco&rft.isbn=3-540-53487-3&rft.date=1990&rft.btitle=Foundations+of+Software+Technology+and+Theoretical+Computer+Science+(FSTTCS+1990)&rft.title=Observational+Logics+and+Concurrency+Models&rft.genre=bookitem