@article{Goel2010,
author = {Goel, S. and Salganik, M.J. },
title= {Assessing respondent-driven sampling},
year = {2010},
doi = {10.1073/pnas.1000261107},
journal = {Proceedings of the National Academy of Sciences },
volume = {107},
number = {15},
pages = {6743--6747},
}