@article{Lepkowski2010,
author = {Lepkowski, J.M. and Mosher, W.D. and Davis, K.E. and Groves, R.M and van Hoewyk, J. },
title= {The 2006-2010 National Survey of Family Growth: sample design and analysis of a continuous survey.},
year = {2010},
journal = {Vital Health Stat 2.},
volume = {150},
pages = {1--36},
}