@article{Sayer2004,
author = {Sayer, L.C. and Gauthier, A.H. and Furstenberg, F.F.J.},
title= {Educational differences in parents’ time with children: Cross-national variations},
year = {2004},
doi = {10.1111/j.0022-2445.2004.00084.x},
volume = {66},
number = {5},
pages = {1152--1169},
}