@article{Green:2016X4,
  author = "Green, Jeremy R.  and  Asmussen, Nils  and  Gryniuk, Oleksii  and  von Hippel, Georg  and  Meyer, Harvey  and  Nyffeler, Andreas  and  Pascalutsa, Vladimir",
  title = "{Direct calculation of hadronic light-by-light scattering}",
  doi = "10.22323/1.251.0109",
  journal = "PoS",
  year = 2016,
  volume = "LATTICE 2015",
  pages = "109"
}