TY  - RPRT
TI  - Modeling transitions in latent stage-sequential processes: a substance use prevention example.
AU  - J W Graham
AU  - L M Collins
AU  - S E Wugalter
AU  - N K Chung
AU  - W B Hansen
PY  - 1991
DO  - 10.1037//0022-006x.59.1.48
UR  - https://pubmed.ncbi.nlm.nih.gov/2002142/
ID  - 2002142
ER  -