@article{Liu2012,
author = {Liu, H. and Li, J. and Ha, T. and Li, J.},
title= {Assessment of random recruitment assumption in respondent-driven sampling in egocentric network data},
year = {2012},
doi = {10.4236/sn.2012.12002},
journal = {Social Networking},
volume = {1},
number = {2},
pages = {13--21},
}