@article{Koenig2012,
  author    = {Otto Koenig},
  title     = {Vom zoologischen Film zur Encyclopaedia Cinematographica},
  journal   = {Research film = Le film de recherche = Forschungsfilm},
  volume    = {5. 1966},
  number    = {5},
  pages     = {435 -- 439},
  year      = {2012},
}