TY  - RPRT
TI  - Maximum likelihood estimation of two-level latent variable models with mixed continuous and polytomous data.
AU  - S Y Lee
AU  - J Q Shi
PY  - 2001
DO  - 10.1111/j.0006-341x.2001.00787.x
UR  - https://pubmed.ncbi.nlm.nih.gov/11550929/
ID  - 11550929
ER  -