@article{Matthews1985,
author = {Matthews, S.H. and Sprey, J.},
title= {Adolescents’ relationships with grandparents: An empirical contribution to conceptual clarification},
year = {1985},
doi = {10.1093/geronj/40.5.621},
journal = {Journal of Gerontology},
volume = {40},
number = {5},
pages = {621--626},
}