@article{Wildsmith2003,
author = {Wildsmith, E. and Gutmann, M.P. and Gratton, B.},
title= {Assimilation and intermarriage for US immigrant groups, 1880–1990.},
year = {2003},
doi = {10.1016/j.hisfam.2003.05.001},
volume = {8},
number = {4},
pages = {563--584},
}