Douglas D Heckathorn

Design and baseline findings of a large-scale rapid response to an HIV outbreak in people who inject drugs in Athens, Greece: the ARISTOTLE programme.

Don C Des Jarlais, Anastasios Panopoulos, Lucas Wiessing, 2015, Addiction.

SNOWBALL VERSUS RESPONDENT-DRIVEN SAMPLING.

D. Heckathorn, Douglas D Heckathorn, 2011, Sociological methodology.