@article{Christ:2020KT,
  author = "Christ, Norman H.  and  Feng, Xu  and  Jin, Luchang  and  Tu, Cheng  and  Zhao, Yidi",
  title = "{Lattice QCD calculation of the two-photon contributions to $K_L \to \mu^+ \mu^-$ and $\pi^0 \to e^+ e^-$ decays}",
  doi = "10.22323/1.363.0128",
  journal = "PoS",
  year = 2020,
  volume = "LATTICE2019",
  pages = "128"
}