@incollection{Das_2017,
    doi = {10.1007/978-3-319-66902-1_16},
    url = {https://doi.org/10.1007%2F978-3-319-66902-1_16},
    year = {2017},
    publisher = {Springer International Publishing},
    pages = {261--277},
    author = {Anupam Das and Damien Pous},
    title = {A Cut-Free Cyclic Proof System for Kleene Algebra},
    booktitle = {Lecture Notes in Computer Science}
}

@incollection{Das_2017, doi = {10.1007/978-3-319-66902-1_16}, url = {https://doi.org/10.1007%2F978-3-319-66902-1_16}, year = {2017}, publisher = {Springer International Publishing}, pages = {261--277}, author = {Anupam Das and Damien Pous}, title = {A Cut-Free Cyclic Proof System for Kleene Algebra}, booktitle = {Lecture Notes in Computer Science} }