TY  - RPRT
TI  - When constraints interact: a caution about reference variables, identification constraints, and scale dependencies in structural equation modeling.
AU  - James H Steiger
PY  - 2002
DO  - 10.1037/1082-989x.7.2.210
UR  - https://pubmed.ncbi.nlm.nih.gov/12090411/
ID  - 12090411
ER  -