By Gravemeijer Koeno   Doorman Michiel   in Educational Studies in Mathematics

ISSN:0013-1954|39|1-3|111-129

Springer Publishing Company ‎(1999)‎

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By Drijvers Paul   Doorman Michiel   Boon Peter   Reed Helen   Gravemeijer Koeno   in Educational Studies in Mathematics

ISSN:0013-1954|75|2|213-234

Springer Publishing Company ‎(2010)‎

Access to resources Favorite 13.68472