@article{Kohler2007, author = {Kohler, H.-P. and Behrman, J.R. and Watkins, S.C.}, title= {Social networks and HIV/AIDS risk perceptions}, year = {2007}, doi = {10.1353/dem.2007.0006}, journal = {Demography}, volume = {44}, number = {1}, pages = {1--33}, }