@article{JE__2008,
    doi = {10.1142/s012905410800584x},
    url = {https://doi.org/10.1142%2Fs012905410800584x},
    year = {2008},
    month = {jun},
    publisher = {World Scientific Pub Co Pte Lt},
    volume = {19},
    number = {03},
    pages = {597--615},
    author = {ARTUR JE{\.{Z}}},
    title = {{CONJUNCTIVE} {GRAMMARS} {GENERATE} {NON}-{REGULAR} {UNARY} {LANGUAGES}},
    journal = {International Journal of Foundations of Computer Science}
}

@article{JE__2008, doi = {10.1142/s012905410800584x}, url = {https://doi.org/10.1142%2Fs012905410800584x}, year = {2008}, month = {jun}, publisher = {World Scientific Pub Co Pte Lt}, volume = {19}, number = {03}, pages = {597--615}, author = {ARTUR JE{.{Z}}}, title = {{CONJUNCTIVE} {GRAMMARS} {GENERATE} {NON}-{REGULAR} {UNARY} {LANGUAGES}}, journal = {International Journal of Foundations of Computer Science} }