@article{Zijdeman2010,
author = {Zijdeman, R.L. and Maas, I.},
title= {Assortative mating by occupational status during early industrialization},
year = {2010},
doi = {10.1016/j.rssm.2010.06.004},
volume = {28},
number = {4},
pages = {395--415},
}