@inbook{Marshall2003,
author = {Marshall, V.W. and Mueller, M.M.},
title= {Theoretical roots of the life-course perspective},
year = {2003},
doi = {10.1086/231037},
editor = {Heinz, W.R.},
editor = {Marshall, V.W.},
booktitle = {Social Dynamics of the Life Course},
address = {New York},
publisher = {Walter de Gruyter},
pages = {3--32},
}