@article{45361,
  author = {Wilhelm Lauer},
  title = {Carl Troll {\textendash} Naturforscher und Geograph},
  year = {1976},
  journal = {Erdkunde},
  volume = {30},
  pages = {1-9},
  url = {https://www.erdkunde.uni-bonn.de/article/view/1769},
  language = {eng},
}