@article{Thiele2006,
author = {Thiele, D.M. and Whelan, T.A.},
title= {The nature and dimensions of the grandparent role},
year = {2006},
doi = {10.1300/J002v40n01_06},
journal = {Marriage and Family Review},
volume = {40},
number = {1},
pages = {93--108},
}