@misc{indiciaede2bccdd32f5,
  title = {Maximum likelihood estimation of two-level latent variable models with mixed continuous and polytomous data.},
  author = {S Y Lee and J Q Shi},
  year = {2001},
  doi = {10.1111/j.0006-341x.2001.00787.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/11550929/},
  note = {Source identifier: 11550929}
}