@article{McCormick2010,
author = {McCormick, T.H. and Salganik, M.J. and Zheng, T.},
title= {How many people do you know? Efficiently estimating personal network size},
year = {2010},
doi = {10.1198/jasa.2009.ap08518},
volume = {105},
number = {489},
pages = {59--70},
}