@article{Bethencourt2009,
author = {Bethencourt, C. and Rios-Rull, J.V.},
title= {On the living arrangements of elderly widows},
year = {2009},
doi = {10.1111/j.1468-2354.2009.00548.x},
volume = {50},
number = {3},
pages = {773--801},
}