@article{Raley2006,
author = {Raley, S.B. and Mattingly, M.J. and Bianchi, S.M.},
title= {How dual are dual-income couples? Documenting change from 1970 to 2001},
year = {2006},
doi = {10.1111/j.1741-3737.2006.00230.x},
journal = {Journal of Marriage and the Family},
volume = {68},
pages = {11--28},
}