@article{Jantzen_2003,
    doi = {10.1016/s0890-5401(03)00087-7},
    url = {https://doi.org/10.1016%2Fs0890-5401%2803%2900087-7},
    year = {2003},
    month = {sep},
    publisher = {Elsevier {BV}},
    volume = {185},
    number = {2},
    pages = {159--181},
    author = {Matthias Jantzen and Alexy Kurganskyy},
    title = {Refining the hierarchy of blind multicounter languages and twist-closed trios},
    journal = {Information and Computation}
}

@article{Jantzen_2003, doi = {10.1016/s0890-5401(03)00087-7}, url = {https://doi.org/10.1016%2Fs0890-5401%2803%2900087-7}, year = {2003}, month = {sep}, publisher = {Elsevier {BV}}, volume = {185}, number = {2}, pages = {159--181}, author = {Matthias Jantzen and Alexy Kurganskyy}, title = {Refining the hierarchy of blind multicounter languages and twist-closed trios}, journal = {Information and Computation} }