@article{Delger1998,
author = {Delger, H. and Kok, J.},
title= {Bridegrooms and biases: a critical look at the study of intergenerational mobility on the basis of marriage certificates},
year = {1998},
doi = {10.1080/01615449809601194},
journal = {Historical Methods},
volume = {31},
number = {3},
pages = {113--121},
}