@article{Williams:2014UK,
  author = "Williams, Ciaran  and  Campbell, John  and  Giele, Walter",
  title = "{Event by event weighting at NLO}",
  doi = "10.22323/1.197.0037",
  journal = "PoS",
  year = 2014,
  volume = "RADCOR 2013",
  pages = "037"
}