@article{Koropeckyj-Cox2007,
author = {Koropeckyj-Cox, T.  and Call, V.R.A. },
title= {Characteristics of older childless persons and parents: Cross-national comparisons},
year = {2007},
doi = {10.1177/0192513X07303837},
journal = {Journal of Family Issues },
volume = {28},
number = {10},
pages = {1362--1414},
}