# License and citation

## Citation

If you use *r5py* for scientific research, please cite it in your publications:

:::{bibliography}
:filter: False
:keyprefix: r5py-

fink_r5py_2022
:::

Please also cite the [relevant publications relating to the R⁵
engine](https://github.com/conveyal/r5/#methodology) on which *r5py* builds up:

:::{bibliography}
:filter: False
:keyprefix: further-reading-

conway_evidence-based_2017
conway_accounting_2018
conway_getting_2019
:::


## License

This work is dual-licensed under GNU General Public License v3.0 or later and
MIT License.  You can choose between the two depending on which license fits
your project better.

`SPDX-License-Identifier: GPL-3.0-or-later OR MIT`