* [[Christina M. Krause|Krause, C. M.]] & [[Angelika Bikner-Ahsbahs|Bikner-Ahsbahs, A.]] (2012). Modes of sign use in epistemic processes. In T.-Y. Tso (Hrsg.), P''roceedings of the 36th Conference of the International Group for the Psychology in Mathematics Education, Vol. 3'' (S. 19 – 26), Taipei, Taiwan: PME. | * [[Christina M. Krause|Krause, C. M.]] & [[Angelika Bikner-Ahsbahs|Bikner-Ahsbahs, A.]] (2012). Modes of sign use in epistemic processes. In T.-Y. Tso (Hrsg.), P''roceedings of the 36th Conference of the International Group for the Psychology in Mathematics Education, Vol. 3'' (S. 19 – 26), Taipei, Taiwan: PME. |