@article{Bongaarts2006,
author = {Bongaarts, J. and Feeney, G.},
title= {The quantum and tempo of life-cycle events},
year = {2006},
doi = {10.1553/populationyearbook2006s115},
journal = {Vienna Yearbook of Population Research},
volume = {2006},
pages = {115--151},
}