@incollection{valmari:09,
    Author = {Valmari, Antti},
    BookTitle = {Applications and Theory of Petri Nets},
    Editor = {Franceschinis, Giuliana and Wolf, Karsten},
    ISBN = {978-3-642-02423-8},
    Keywords = {Analysis of reachability graphs; verification of systems},
    Pages = {123-142},
    Publisher = {Springer Berlin Heidelberg},
    Series = {Lecture Notes in Computer Science},
    Title = {Bisimilarity Minimization in O(m logn) Time},
    URL = {http://dx.doi.org/10.1007/978-3-642-02424-5\_9},
    Volume = {5606},
    Year = {2009},
    bdsk-url-1 = {http://dx.doi.org/10.1007/978-3-642-02424-5\_9},
    date-added = {2013-11-23 16:50:31 +0000},
    date-modified = {2013-11-23 16:50:31 +0000},
    doi = {10.1007/978-3-642-02424-5_9}
}

@incollection{valmari:09, Author = {Valmari, Antti}, BookTitle = {Applications and Theory of Petri Nets}, Editor = {Franceschinis, Giuliana and Wolf, Karsten}, ISBN = {978-3-642-02423-8}, Keywords = {Analysis of reachability graphs; verification of systems}, Pages = {123-142}, Publisher = {Springer Berlin Heidelberg}, Series = {Lecture Notes in Computer Science}, Title = {Bisimilarity Minimization in O(m logn) Time}, URL = {http://dx.doi.org/10.1007/978-3-642-02424-5_9}, Volume = {5606}, Year = {2009}, bdsk-url-1 = {http://dx.doi.org/10.1007/978-3-642-02424-5_9}, date-added = {2013-11-23 16:50:31 +0000}, date-modified = {2013-11-23 16:50:31 +0000}, doi = {10.1007/978-3-642-02424-5_9} }