@article{Schaefer:2007sO,
  author = "Schaefer, Wolfgang",
  title = "{Nonlinear k_t factorisation: recent progress and perspectives}",
  doi = "10.22323/1.035.0040",
  journal = "PoS",
  year = 2007,
  volume = "DIFF2006",
  pages = "040"
}