@inproceedings{Merli2008,
author = {Merli, M.G. and Neely, W.W. and Gao, E. and Tu, X. and Chen, X. and Tian, F. and Gu, W. and Y., Yang},
title= {Sampling female sex workers in Shanghai using Respondent Driven Sampling},
year = {2008},
address = {Shanghai},
}