@article{SELIVANOV_2008,
    doi = {10.1142/s0129054108005875},
    url = {https://doi.org/10.1142%2Fs0129054108005875},
    year = {2008},
    month = {jun},
    publisher = {World Scientific Pub Co Pte Lt},
    volume = {19},
    number = {03},
    pages = {649--675},
    author = {VICTOR SELIVANOV},
    title = {{FINE} {HIERARCHY} {OF} {REGULAR} {APERIODIC} {$\omega$}-{LANGUAGES}},
    journal = {International Journal of Foundations of Computer Science}
}

@article{SELIVANOV_2008, doi = {10.1142/s0129054108005875}, url = {https://doi.org/10.1142%2Fs0129054108005875}, year = {2008}, month = {jun}, publisher = {World Scientific Pub Co Pte Lt}, volume = {19}, number = {03}, pages = {649--675}, author = {VICTOR SELIVANOV}, title = {{FINE} {HIERARCHY} {OF} {REGULAR} {APERIODIC} {$\omega$}-{LANGUAGES}}, journal = {International Journal of Foundations of Computer Science} }