@article{GzikHahnKuehlingetal.1997,
  author    = {Axel Gzik and Robert Hahn and Matthias K{\"u}hling and S. Zehle},
  title     = {Bl{\"u}ten{\"o}kologisches Monitoring von Konversationsfl{\"a}chen in Brandenburg},
  year      = {1997},
}