@article{He:2016GR,
  author = "He, Zhiguo  and  Kniehl", "Bernd A.",
  title = "{Complete nonrelativistic-QCD prediction for prompt double $J/\psi$ at Hadron Collider}",
  doi = "10.22323/1.265.0162",
  journal = "PoS",
  year = 2016,
  volume = "DIS2016",
  pages = "162"
}