@article{Kalmijn2013,
author = {Kalmijn, M.},
title= {The Educational Gradient in Marriage: A comparison of 25 European countries},
year = {2013},
doi = {10.1007/s13524-013-0229-x},
journal = {Demography },
volume = {50},
number = {4},
pages = {1−22},
}