@article{Saperstein2013,
author = {Saperstein, A. and Gullickson, A.},
title= {A mulatto escape hatch? Examining evidence of U.S. racial and social mobility in the Jim Crow era},
year = {2013},
doi = {10.1007/s13524-013-0210-8},
volume = {50},
number = {5},
pages = {1921--1942},
}