@article{NiessnerDenzauGrossetal.2011,
  author    = {Christine Nießner and Susanne Denzau and Julia Christina Groß and Leo Peichl and Hans-Joachim Bischof and Gerta Fleissner and Wolfgang Wiltschko and Roswitha Wiltschko},
  title     = {Avian ultraviolet/violet cones identified as probable magnetoreceptors},
  journal   = {PLoS One},
  volume    = {6},
  number    = {(5): e20091},
  doi       = {10.1371/journal.pone.0020091},
  year      = {2011},
}