By Bilsen P.   Hamers J.   Don A.   Groot W.   Spreeuwenberg C.   in European Journal of Ageing

ISSN:1613-9372|7|2|101-109

Springer Publishing Company ‎(2010)‎

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By Hamers J.H.M.   de Koning E.   Sijtsma K.   in Contemporary Educational Psychology

ISSN:0361-476X|23|2|132-148

Academic Press‎(1998)‎

Access to resources Favorite 1.8372315

By de Koning E.   Hamers J.H.M.   Sijtsma K.   Vermeer A.   in Developmental Review

ISSN:0273-2297|22|2|211-241

Academic Press‎(2002)‎

Access to resources Favorite 1.8372315