@misc{indiciae2506fe0192e8,
  title = {Asymptotic sampling variances for factor analytic models identified by specified zero parameters.},
  author = {R S Lockhart},
  year = {1967},
  doi = {10.1007/bf02289590},
  url = {https://pubmed.ncbi.nlm.nih.gov/5234704/},
  note = {Source identifier: 5234704}
}