BibTex format
@article{Walker:2008:10.1136/sti.2008.029975,
author = {Walker, PT and Hallett, TB and White, PJ and Garnett, GP},
doi = {10.1136/sti.2008.029975},
journal = {SEXUALLY TRANSMITTED INFECTIONS},
pages = {II42--II48},
title = {Interpreting declines in HIV prevalence: impact of spatial aggregation and migration on expected declines in prevalence},
url = {http://dx.doi.org/10.1136/sti.2008.029975},
volume = {84},
year = {2008}
}