@misc{indiciae7470605ccefe,
  title = {A small particle--a big challenge.},
  author = {S Jørstad},
  year = {1993},
  doi = {10.1159/000170128},
  url = {https://pubmed.ncbi.nlm.nih.gov/8043256/},
  note = {Source identifier: 8043256}
}