@techreport{Wilde2010,
author = {Wilde, E.T. and Batchelder, L. and Ellwood, D.},
title= {The mommy track divides: The impact of childbearing on wages of women of differing skill levels},
year = {2010},
publisher = {National Bureau of Economic Research},
address = {Cambridge},
number = {NBER working paper no. 16582},
}