@article{Barash_2014,
    doi = {10.1016/j.ic.2014.03.003},
    url = {https://doi.org/10.1016%2Fj.ic.2014.03.003},
    year = {2014},
    month = {oct},
    publisher = {Elsevier {BV}},
    volume = {237},
    pages = {268--293},
    author = {Mikhail Barash and Alexander Okhotin},
    title = {An extension of context-free grammars with one-sided context specifications},
    journal = {Information and Computation}
}

@article{Barash_2014, doi = {10.1016/j.ic.2014.03.003}, url = {https://doi.org/10.1016%2Fj.ic.2014.03.003}, year = {2014}, month = {oct}, publisher = {Elsevier {BV}}, volume = {237}, pages = {268--293}, author = {Mikhail Barash and Alexander Okhotin}, title = {An extension of context-free grammars with one-sided context specifications}, journal = {Information and Computation} }