@article{Zheng2006,
author = {Zheng, T. and Salganik, M.J. and Gelman, A.},
title= {How many people do you know in prison? Using overdispersion in count data to estimate social structure in networks},
year = {2006},
doi = {10.1198/016214505000001168},
volume = {101},
number = {474},
pages = {409--423},
}