@misc{indiciae30ff24cb0b11,
  title = {A systematic study of ego functions.},
  author = {L Bellak and M Hurvich},
  year = {1969},
  doi = {10.1097/00005053-196906000-00001},
  url = {https://pubmed.ncbi.nlm.nih.gov/5772722/},
  note = {Source identifier: 5772722}
}