@article{van Vliet2001, author = {van Vliet, C. and Meester, E.I. and Korenromp, E.L. and Singer, B. and Bakker, R. and Habbema, J.D.}, title= {Focusing strategies of condom use against HIV in different behavioural settings: an evaluation based on a simulation model}, year = {2001}, journal = {Bulletin of the World Health Organization}, volume = {79}, number = {5}, pages = {442--454}, }