@misc{sosa2019dual,
  title={Dual-Beam Optical Linear Polarimetry from Southern Skies. Characterisation of CasPol for high precision polarimetry},
  author={M. S. Sosa and C. von Essen and I. Andruchow and S. A. Cellone and L. A. Mammana},
  year={2019},
  eprint={1903.01475},
  archivePrefix={arXiv},
  primaryClass={astro-ph.IM},
  url={https://arxiv.org/abs/1903.01475}
}