By Abrantes Paulo   in Educational Studies in Mathematics

ISSN:0013-1954|47|2|125-143

Springer Publishing Company ‎(2001)‎

Access to resources Favorite 18.885931

By Abrantes Paulo   El-Hani Charbel   in Foundations of Science

ISSN:1233-1821|14|4|295-313

Springer Publishing Company ‎(2009)‎

Access to resources Favorite 12.275453