@article{Helsdingen2012,
  author    = {Peter J. van Helsdingen},
  title     = {Spiders in a hostile world (Arachnoidea, Araneae)},
  journal   = {Arachnologische Mitteilungen},
  volume    = {2011},
  number    = {40},
  pages     = {55 -- 64},
  doi       = {10.5431/aramit4007},
  year      = {2012},
}