@article{eprints365,
          volume = {42},
            year = {1995},
           title = {Three Logics for Branching Bisimulation},
          author = {Rocco De Nicola and Frits W. Vaandrager},
         journal = {J. ACM},
       publisher = {ACM},
            note = {ACM id: 201032},
          number = {2},
           pages = {458--487},
             url = {http://eprints.imtlucca.it/365/},
        keywords = {CTL*, Hennessy-Milner logic, Kripke structures, backward modalities, branching bisimulation equivalence, concurrency, doubly labeled transition systems, labeled transition systems, reactive systems, semantics, stuttering equivalence, until operations},
        abstract = {Three temporal logics are introduced that induce on labeled transition systems the same identifications as branching bisimulation, a behavioral equivalence that aims at ignoring invisible transitions while preserving the branching structure of systems. The first logic is an extension of Hennessy-Milner Logic with an ?until? operator. The second one is another extension of Hennessy-Milner Logic, which exploits the power of backward modalities. The third logic is CTL* without the next-time operator. A relevant side-effect of the last characterization is that it sets a bridge between the state- and action-based approaches to the semantics of concurrent systems.}
}