@article{Barber2011,
author = {Barber, J.S. and East, P.L. },
title= {Children’s experiences after the unintended birth of a sibling},
year = {2011},
doi = {10.1007/s13524-010-0011-2},
journal = {Demography},
volume = {48},
number = {1},
pages = {1--25},
}