@article{Muthén2000,
author = {Muthén, B. and Muthén, L.K.},
title= {Integrating person-centered and variable-centered analyses: Growth mixture modeling with latent trajectory classes},
year = {2000},
doi = {10.1111/j.1530-0277.2000.tb02070.x},
volume = {24},
number = {6},
pages = {882--891},
}