@inbook{Van den Berg2001,
author = {Van den Berg, G.J.},
title= {Duration models: Specification, identification, and multiple duration},
year = {2001},
editor = {Heckman, J.},
editor = {Leamer, E.},
booktitle = {Handbook of econometrics. Volume 5},
address = {Amsterdam},
publisher = {North Holland},
pages = {3381--3460},
}