By Petegem P van   Vanhoof J   Daems F   Mahieu P   in Educational Research and Evaluation

ISSN:1380-3611|11|1|45-60

Routledge Ltd‎(2005)‎

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By Geusens P.   Menten J.   Vosse D.   Vanhoof J.   van der Linden S.   in Journal of Clinical Densitometry

ISSN:1094-6950|4|4|389-394

Humana Press, Inc‎(2001)‎

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