@article{PAUL:2013IP,
  author = "PAUL, Ewald",
  title = "{Measurement of charm fragmentation fractions in photoproduction at HERA}",
  doi = "10.22323/1.191.0291",
  journal = "PoS",
  year = 2013,
  volume = "DIS 2013",
  pages = "291"
}