@article{Treas2008,
author = {Treas, J. and De Ruijter, E.},
title= {Earnings and Expenditures on Household Services in Married and Cohabiting Unions},
year = {2008},
doi = {10.1111/j.1741-3737.2008.00522.x},
journal = {Journal of Marriage and Family},
volume = {70},
number = {3},
pages = {796--805},
}