@incollection{Ibarra_2014,
    doi = {10.1007/978-3-319-09704-6_2},
    url = {https://doi.org/10.1007%2F978-3-319-09704-6_2},
    year = {2014},
    publisher = {Springer International Publishing},
    pages = {5--22},
    author = {Oscar H. Ibarra},
    title = {Automata with Reversal-Bounded Counters: A Survey},
    booktitle = {Descriptional Complexity of Formal Systems}
}

@incollection{Ibarra_2014, doi = {10.1007/978-3-319-09704-6_2}, url = {https://doi.org/10.1007%2F978-3-319-09704-6_2}, year = {2014}, publisher = {Springer International Publishing}, pages = {5--22}, author = {Oscar H. Ibarra}, title = {Automata with Reversal-Bounded Counters: A Survey}, booktitle = {Descriptional Complexity of Formal Systems} }