TY  - JOUR
A1  - Uhlenberg, P.
A1  - Hammill, B.G.
T1  - Frequency of grandparent contact with grandchild sets: Six factors that make a difference
Y1  - 1998
DO  - 10.1093/geront/38.3.276
VL  - 38
IS  - 3

ER  -