@article{Hammer1982,
author = {Hammer, M. and Gutwirth, L. and Phillips, S.L.},
title= {Parenthood and Social Networks: A preliminary view},
year = {1982},
doi = {10.1016/0277-9536(82)90258-1},
journal = {Social Science & Medicine},
volume = {16},
number = {24},
pages = {2091--2100},
}