*[[Kathrin Akinwunmi|Akinwunmi, K.]], [[Karina Höveler|Höveler, K.]] & [[Susanne Schnell|Schnell, S.]] (2014). On the Importance of Subject Matter in Mathematics Education: A Conversation with [[Erich Christian Wittmann]]. EURASIA – Journal of Mathematics, Science & Technology Education, 10 (4), 357-363 | *[[Kathrin Akinwunmi|Akinwunmi, K.]], [[Karina Höveler|Höveler, K.]] & [[Susanne Schnell|Schnell, S.]] (2014). On the Importance of Subject Matter in Mathematics Education: A Conversation with [[Erich Christian Wittmann]]. EURASIA – Journal of Mathematics, Science & Technology Education, 10 (4), 357-363 |