@article{Bonetti2013,
author = {Bonetti, M. and Piccarreta, R. and Salford, G.},
title= {Parametric and nonparametric analysis of life courses: An application to family formation patterns},
year = {2013},
doi = {10.1007/s13524-012-0191-z},
volume = {50},
number = {3},
pages = {881--902},
}