By Drijvers Paul   in ZDM

ISSN:1863-9690|29|4|118-123

Springer Publishing Company ‎(1997)‎

Access to resources Favorite 17.127419

By Kieran Carolyn   Drijvers Paul   in International Journal of Computers for Mathematical Learning

ISSN:1382-3892|11|2|205-263

Springer Publishing Company ‎(2006)‎

Access to resources Favorite 13.701935

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 8.563709