@article{Choi2012,
author = {Choi, K.H. and Mare, R.D.},
title= {International migration and educational assortative mating in Mexico and the United States},
year = {2012},
doi = {10.1007/s13524-012-0095-y},
journal = {Demography },
volume = {49},
number = {2},
pages = {449−476},
}