@techreport{Wilde2010,
author = {Wilde, E.T. and Batchelder, L. and Ellwod, D.T.  },
title= {The mommy track divides: The impact of childbearing on wages of women with differing skill levels},
year = {2010},
publisher = {NBER (NBER Working paper; No. 1658)},
address = {Cambridge},
}