@article{van de Putte2009,
author = {van de Putte, B. and van Poppel, F. and Vanassche, S. and Sanchez, M. and Jidkova, S. and Eeckhaut, M. and Oris, M. and Matthijs, K.},
title= {The Rise of Age Homogamy in 19th Century Western Europe},
year = {2009},
doi = {10.1111/j.1741-3737.2009.00666.x},
journal = {Journal of Marriage and Family},
volume = {71},
number = {5},
pages = {1234--1253},
}