@article{Beauchemin2011,
author = {Beauchemin, C. and González-Ferrer, A.},
title= {Sampling international migrants with origin-based snowballing method: New evidence on biases and limitations},
year = {2011},
doi = {10.4054/DemRes.2011.25.3},
journal = {Demographic Research},
volume = {25},
number = {3},
pages = {103‒134},
}