@misc{indiciae721fbb3054e0,
  title = {Developing object constancy in group psychotherapy.},
  author = {W K Hahn},
  year = {1993},
  doi = {10.1080/00207284.1994.11491218},
  url = {https://pubmed.ncbi.nlm.nih.gov/8473063/},
  note = {Source identifier: 8473063}
}