@incollection{Doyen_2010,
    doi = {10.1007/978-3-642-12002-2_2},
    url = {https://doi.org/10.1007%2F978-3-642-12002-2_2},
    year = {2010},
    publisher = {Springer Berlin Heidelberg},
    pages = {2--22},
    author = {Laurent Doyen and Jean-Fran{\c{c}}ois Raskin},
    title = {Antichain Algorithms for Finite Automata},
    booktitle = {Tools and Algorithms for the Construction and Analysis of Systems}
}

@incollection{Doyen_2010, doi = {10.1007/978-3-642-12002-2_2}, url = {https://doi.org/10.1007%2F978-3-642-12002-2_2}, year = {2010}, publisher = {Springer Berlin Heidelberg}, pages = {2--22}, author = {Laurent Doyen and Jean-Fran{\c{c}}ois Raskin}, title = {Antichain Algorithms for Finite Automata}, booktitle = {Tools and Algorithms for the Construction and Analysis of Systems} }