@article{Jir_skov__2005,
    doi = {10.1016/j.tcs.2004.04.011},
    url = {https://doi.org/10.1016%2Fj.tcs.2004.04.011},
    year = {2005},
    month = {feb},
    publisher = {Elsevier {BV}},
    volume = {330},
    number = {2},
    pages = {287--298},
    author = {Galina Jir{\'{a}}skov{\'{a}}},
    title = {State complexity of some operations on binary regular languages},
    journal = {Theoretical Computer Science}
}

@article{Jir_skov__2005, doi = {10.1016/j.tcs.2004.04.011}, url = {https://doi.org/10.1016%2Fj.tcs.2004.04.011}, year = {2005}, month = {feb}, publisher = {Elsevier {BV}}, volume = {330}, number = {2}, pages = {287--298}, author = {Galina Jir{\'{a}}skov{\'{a}}}, title = {State complexity of some operations on binary regular languages}, journal = {Theoretical Computer Science} }