@article{Gans2006,
author = {Gans, D. and Silverstein, M.},
title= {Norms of filial responsibility for aging parents across time and generations},
year = {2006},
doi = {10.1111/j.1741-3737.2006.00307.x},
journal = {Journal of Marriage and Family},
volume = {68},
number = {4},
pages = {961--976},
}