@misc{indiciae2837b0404ce4,
  title = {PEBBLE PICKING VERSUS BOULDER BUILDING.},
  author = {J R ROYCE},
  year = {1965},
  doi = {10.2466/pr0.1965.16.2.447},
  url = {https://pubmed.ncbi.nlm.nih.gov/14285846/},
  note = {Source identifier: 14285846}
}