@article{Ku_era_2010,
    doi = {10.1016/j.ic.2010.01.003},
    url = {https://doi.org/10.1016%2Fj.ic.2010.01.003},
    year = {2010},
    month = {jul},
    publisher = {Elsevier {BV}},
    volume = {208},
    number = {7},
    pages = {772--796},
    author = {Anton{\'{\i}}n Ku{\v{c}}era and Richard Mayr},
    title = {On the complexity of checking semantic equivalences between pushdown processes and finite-state processes},
    journal = {Information and Computation}
}

@article{Ku_era_2010, doi = {10.1016/j.ic.2010.01.003}, url = {https://doi.org/10.1016%2Fj.ic.2010.01.003}, year = {2010}, month = {jul}, publisher = {Elsevier {BV}}, volume = {208}, number = {7}, pages = {772--796}, author = {Anton{\'{\i}}n Ku{\v{c}}era and Richard Mayr}, title = {On the complexity of checking semantic equivalences between pushdown processes and finite-state processes}, journal = {Information and Computation} }