@techreport{van den Berg2006,
author = {van den Berg, G. and Lindeboom, M. and Portrait, F. },
title= {Conjugal Bereavement Effects on Health and Mortality at Advanced Ages},
year = {2006},
publisher = {Institute for the Study of Labor},
address = {Bonn},
number = {IZA discussion paper n. 2358},
}