@misc{indiciaef1b97a2be7bc,
  title = {[A response from ZOO NV].},
  author = {H J Heuthorst and R L Schreuder},
  year = {1989},
  url = {https://pubmed.ncbi.nlm.nih.gov/2799769/},
  note = {Source identifier: 2799769}
}