@misc{indiciaeac9385ba2e72,
  title = {Cluttering and its problems.},
  author = {F Grewel},
  year = {1970},
  doi = {10.1159/000263407},
  url = {https://pubmed.ncbi.nlm.nih.gov/5503833/},
  note = {Source identifier: 5503833}
}