Hits 1-10 within 1519 documents
Sampling knowledge: the hermeneutics of snowball sampling in qualitative research [journal article]
Source: International Journal of Social Research Methodology, 11 (2008) 4. p.327-344
Biological specimens for community-based surveillance studies: method of recruitment matters [journal article]
Source: Survey Research Methods, 5 (2011) 3. p.117-124
Eine deutsche Standarddemographie [journal article]
Source: ZUMA Nachrichten, 16 (1992) 31. p.29-46
OpenStreetMap, the Wikipedia Map [journal article]
Source: Region: the journal of ERSA, 1 (2014) 1. p.R3-R10