@article{vexler2023implement,
  title={How to implement signed-rank wilcox. test () type procedures when a center of symmetry is unknown},
  author={Vexler, Albert and Gao, Xinyu and Zhou, Jiaojiao},
  journal={Computational Statistics \& Data Analysis},
  pages={107746},
  year={2023},
  publisher={Elsevier}
}
@article{gastwirth1971sign,
  title={On the sign test for symmetry},
  author={Gastwirth, Joseph L},
  journal={Journal of the American Statistical Association},
  volume={66},
  number={336},
  pages={821--823},
  year={1971},
  publisher={Taylor \& Francis}
}

