# Citing otswap If you use otswap in published work, please cite the paper that describes the method and its use: - Sartori, S., et al. 2026, *The Back-in-time Void Finder: dynamical identification of cosmic voids through optimal transport reconstruction*, [arXiv:2601.15378](https://arxiv.org/abs/2601.15378) otswap is extracted from the optimal transport reconstruction of CosmoBolognaLib; please cite it as well: - Marulli, F., Veropalumbo, A., & Moresco, M. 2016, *CosmoBolognaLib: C++ libraries for cosmological calculations*, Astronomy and Computing, 14, 35, [doi:10.1016/j.ascom.2016.01.005](https://doi.org/10.1016/j.ascom.2016.01.005) The [method](method.md) page lists the work the method builds on.