@inbook{Muthén00,
author = {Muthén, B.O.},
title= {Latent Variable Analysis: Growth Mixture Modeling and Related Techniques for Longitudinal Data},
doi = {10.4135/9781412986311.n19},
editor = {Kaplan, D.},
booktitle = {Handbook of Quantitative Methodology for the Social Sciences},
address = {Thousand Oaks, CA},
publisher = {SAGE Publications},
pages = {346--370},
}