By Heerwegh Dirk   Loosveldt Geert   in International Journal of Social Research Methodology

ISSN:1464-5300|12|3|181-195

Routledge Ltd‎(2009)‎

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By Beullens Koen   Billiet Jaak   Loosveldt Geert   in Quality and Quantity

ISSN:0033-5177|44|6|1053-1065

Springer Publishing Company ‎(2010)‎

Access to resources Favorite 13.616243