@misc{indiciaee9704c9b56d0,
  title = {Analysis of process data from token groups in a summer camp.},
  author = {R V Heckel and L Hursh and J M Hiers},
  year = {1977},
  doi = {10.1002/1097-4679(197701)33:1+<241::aid-jclp2270330155>3.0.co;2-x},
  url = {https://pubmed.ncbi.nlm.nih.gov/833311/},
  note = {Source identifier: 833311}
}