@article{Esteve2009,
author = {Esteve, A.  and Cortina, C. },
title= {Changes in educational assortative mating in contemporary Spain},
year = {2009},
doi = {10.4054/DemRes.2006.14.17},
journal = {Demographic Research },
volume = {14},
number = {17},
pages = {405--428},
}