@article{Todd2005,
author = {Todd, P.M. and Billari, F.C. and Simão, J.},
title= {Aggregate age-at-marriage patterns from individual mate-search heuristics},
year = {2005},
doi = {10.1353/dem.2005.0027},
journal = {Demography },
volume = {42},
number = {3},
pages = {559--574},
}