@article{SchaeferJanochaKlausetal.2017,
  author    = {Julia E. Sch{\"a}fer and Marcel M. Janocha and Sebastian Klaus and Dieter Thomas Tietze},
  title     = {How weather instead of urbanity measures affects song trait variability in three European passerine bird species},
  journal   = {Ecology and evolution},
  volume    = {7},
  number    = {13},
  pages     = {4868 -- 4880},
  doi       = {10.1002/ece3.3032},
  year      = {2017},
}