@article{Behrman2007,
author = {Behrman, J.R. and Kohler, H.-P. and Watkins, S.C.},
title= {Social Networks HIV/AIDS and Risk Perceptions},
year = {2007},
doi = {10.1353/dem.2007.0006},
journal = {Demography},
volume = {44},
number = {1},
pages = {1--33},
}