@incollection{JezOkhotin:2007,
    Author = {Je{\.z}, Artur and Okhotin, Alexander},
    BookTitle = {Computer Science -- Theory and Applications},
    Editor = {Diekert, Volker and Volkov, MikhailV. and Voronkov, Andrei},
    File = {Conjunctive Grammars over a Unary Alphabet Undecidability and Unbounded Growth - Jeż, Okhotin (0) (1) - a - a - a.pdf},
    ISBN = {978-3-540-74509-9},
    Language = {English},
    Pages = {168-181},
    Publisher = {Springer Berlin Heidelberg},
    Series = {Lecture Notes in Computer Science},
    Title = {Conjunctive Grammars over a Unary Alphabet: Undecidability and Unbounded Growth},
    URL = {http://dx.doi.org/10.1007/978-3-540-74510-5\_19},
    Volume = {4649},
    Year = {2007},
    bdsk-url-1 = {http://dx.doi.org/10.1007/978-3-540-74510-5\_19},
    date-added = {2015-03-13 11:06:21 +0000},
    date-modified = {2015-03-13 11:06:21 +0000},
    doi = {10.1007/978-3-540-74510-5_19}
}

@incollection{JezOkhotin:2007, Author = {Je{.z}, Artur and Okhotin, Alexander}, BookTitle = {Computer Science -- Theory and Applications}, Editor = {Diekert, Volker and Volkov, MikhailV. and Voronkov, Andrei}, File = {Conjunctive Grammars over a Unary Alphabet Undecidability and Unbounded Growth - Jeż, Okhotin (0) (1) - a - a - a.pdf}, ISBN = {978-3-540-74509-9}, Language = {English}, Pages = {168-181}, Publisher = {Springer Berlin Heidelberg}, Series = {Lecture Notes in Computer Science}, Title = {Conjunctive Grammars over a Unary Alphabet: Undecidability and Unbounded Growth}, URL = {http://dx.doi.org/10.1007/978-3-540-74510-5_19}, Volume = {4649}, Year = {2007}, bdsk-url-1 = {http://dx.doi.org/10.1007/978-3-540-74510-5_19}, date-added = {2015-03-13 11:06:21 +0000}, date-modified = {2015-03-13 11:06:21 +0000}, doi = {10.1007/978-3-540-74510-5_19} }