@incollection{Colcombet_2011,
    doi = {10.1007/978-3-642-21254-3_1},
    url = {https://doi.org/10.1007%2F978-3-642-21254-3_1},
    year = {2011},
    publisher = {Springer Berlin Heidelberg},
    pages = {1--21},
    author = {Thomas Colcombet},
    title = {Green's Relations and Their Use in Automata Theory},
    booktitle = {Language and Automata Theory and Applications}
}

@incollection{Colcombet_2011, doi = {10.1007/978-3-642-21254-3_1}, url = {https://doi.org/10.1007%2F978-3-642-21254-3_1}, year = {2011}, publisher = {Springer Berlin Heidelberg}, pages = {1--21}, author = {Thomas Colcombet}, title = {Green's Relations and Their Use in Automata Theory}, booktitle = {Language and Automata Theory and Applications} }