@article{Cigno1989,
author = {Cigno, A. and Ermisch, J.},
title= {A microeconomic analysis of the timing of births},
year = {1989},
doi = {10.1016/0014-2921(89)90023-8},
journal = {European Economic Review},
volume = {33},
number = {4},
pages = {737--760},
}