@article{Dukhovnov2015,
author = {Dukhovnov, D. and Zagheni, E.},
title= {Who Takes Care of Whom in the US? Evidence from Matrices of Time Transfers by Age and Sex},
year = {2015},
doi = {10.1111/j.1728-4457.2015.00044.x},
journal = {Population and Development Review},
volume = {41},
number = {2},
pages = {183−206},
}