@article{Hering2012,
  author    = {Jens Hering},
  title     = {Beitrag zur Wintervogelwelt Libyens},
  journal   = {Vogelwarte : Zeitschrift f{\"u}r Vogelkunde},
  volume    = {47},
  number    = {1},
  pages     = {5 -- 22},
  year      = {2012}
}