@article{44775,
  author = {Erik {\r A}hman},
  title = {Helge Backlund in memoriam},
  year = {1960},
  journal = {Bulletin of the Geological Institutions of the University of Uppsala},
  volume = {38},
  pages = {I{\textendash}XIX},
  url = {https://paleoarchive.com/literature/Ahman1960-HelgeBacklundInMemoriam.pdf},
  language = {eng},
}