@article{Jacobsen1999,
author = {Jacobsen, Joyce P. and Pearce, James Wishart and Rosenbloom, Joshua L.},
title= {The Effects of Childbearing on Married Women's Labor Supply and Earnings: Using Twin Births as a Natural Experiment},
year = {1999},
doi = {10.2307/146376},
journal = {The Journal of Human Resources},
volume = {34},
number = {3},
pages = {449--474},
}