@article{Clark2007,
author = {Clark, W.A.V. and Davies Withers, S.},
title= {Family migration and mobility sequences in the United States: Spatial mobility in the context of the life course},
year = {2007},
doi = {10.4054/DemRes.2007.17.20},
URL = {http://www.demographic-research.org/Volumes/Vol17/20/default.htm},
journal = {Demographic Research},
volume = {17},
number = {20},
pages = {591--622},
}