@article{Matsudo:2019cS,
  author = "Matsudo, Ryutaro",
  title = "{How to extract the "Abelian" part of double-winding Wilson loop}",
  doi = "10.22323/1.363.0215",
  journal = "PoS",
  year = 2019,
  volume = "LATTICE2019",
  pages = "215"
}