@inproceedings{PlaceRooijenZeitoun:MFCS:2013,
    Author = {Place, Thomas and Rooijen, Lorijn and Zeitoun, Marc},
    BookTitle = {Proc. of MFCS'13},
    Editor = {Chatterjee, Krishnendu and Sgall, Jir{\'\i}},
    File = {Separating Regular Languages by Piecewise Testable and Unambiguous Languages - Place, Rooijen, Zeitoun (0) (0) - a - a - j.pdf},
    ISBN = {978-3-642-40313-2},
    Pages = {729--740},
    Publisher = {Springer},
    Title = {Separating Regular Languages by Piecewise Testable and Unambiguous Languages},
    URL = {http://dx.doi.org/10.1007/978-3-642-40313-2\_64},
    Year = {2013},
    bdsk-url-1 = {http://dx.doi.org/10.1007/978-3-642-40313-2\_64},
    date-added = {2016-01-29 12:01:56 +0000},
    date-modified = {2017-04-10 15:21:50 +0000},
    doi = {10.1007/978-3-642-40313-2_64}
}

@inproceedings{PlaceRooijenZeitoun:MFCS:2013, Author = {Place, Thomas and Rooijen, Lorijn and Zeitoun, Marc}, BookTitle = {Proc. of MFCS'13}, Editor = {Chatterjee, Krishnendu and Sgall, Jir{\'\i}}, File = {Separating Regular Languages by Piecewise Testable and Unambiguous Languages - Place, Rooijen, Zeitoun (0) (0) - a - a - j.pdf}, ISBN = {978-3-642-40313-2}, Pages = {729--740}, Publisher = {Springer}, Title = {Separating Regular Languages by Piecewise Testable and Unambiguous Languages}, URL = {http://dx.doi.org/10.1007/978-3-642-40313-2_64}, Year = {2013}, bdsk-url-1 = {http://dx.doi.org/10.1007/978-3-642-40313-2_64}, date-added = {2016-01-29 12:01:56 +0000}, date-modified = {2017-04-10 15:21:50 +0000}, doi = {10.1007/978-3-642-40313-2_64} }