@article{Song2012,
author = {Song, S.G.},
title= {Does famine influence sex ratio at birth? Evidence from the 1959–1961 Great Leap Forward famine in China},
year = {2012},
doi = {10.1098/rspb.2012.0320},
volume = {279},
number = {1739},
pages = {2883--2890},
}