@incollection{Gehrke_2010,
    doi = {10.1007/978-3-642-14162-1_13},
    url = {https://doi.org/10.1007%2F978-3-642-14162-1_13},
    year = {2010},
    publisher = {Springer Berlin Heidelberg},
    pages = {151--162},
    author = {Mai Gehrke and Serge Grigorieff and Jean-{\'{E}}ric Pin},
    title = {A Topological Approach to Recognition},
    booktitle = {Automata, Languages and Programming}
}

@incollection{Gehrke_2010, doi = {10.1007/978-3-642-14162-1_13}, url = {https://doi.org/10.1007%2F978-3-642-14162-1_13}, year = {2010}, publisher = {Springer Berlin Heidelberg}, pages = {151--162}, author = {Mai Gehrke and Serge Grigorieff and Jean-{\'{E}}ric Pin}, title = {A Topological Approach to Recognition}, booktitle = {Automata, Languages and Programming} }