@techreport{Heckathorn2006,
author = {Heckathorn, D.D.},
title= {Studying second-generation immigrants: Methodological challenges and innovative solutions},
year = {2006},
URL = {http://www.migrationinformation.org/usfocus/display.cfm?ID=441#top (June 30, 2010)},
number = {Migration Information Source},
}