| *Weigand, H. G., Neill, N., Peter-Koop, A., [[Kristina Reiss|Reiss, K.]], Törner, G. & [[Bernd Wollring|Wollring, B.]] (Eds.). (2002). ''Developments in Mathematics Education in German-Speaking Countries. Selected Papers from the Annual Conference on Didactics of Mathematics, Bern, 1999''. Hildesheim: Franzbecker. | | *Weigand, H. G., Neill, N., Peter-Koop, A., [[Kristina Reiss|Reiss, K.]], Törner, G. & [[Bernd Wollring|Wollring, B.]] (Eds.). (2002). ''Developments in Mathematics Education in German-Speaking Countries. Selected Papers from the Annual Conference on Didactics of Mathematics, Bern, 1999''. Hildesheim: Franzbecker. |
− | *Weigand, H. G., Peter-Koop, A., Neill, N., [[Kristina Reiss|Reiss, K.]], Törner, G. & Wollring, B.(Eds.). (2001). ''Developments in Mathematics Education in German-Speaking Countries. Selected Papers from the [[Jahrestagung 1998 der GDM|Annual Conference on Didactics of Mathematics]], Munich, 1998''. Hildesheim: Franzbecker. | + | *Weigand, H. G., Peter-Koop, A., Neill, N., [[Kristina Reiss|Reiss, K.]], Törner, G. & Wollring, B.(Eds.). (2001). ''Developments in Mathematics Education in German-Speaking Countries. Selected Papers from the [[Jahrestagung 1998 der GDM|Annual Conference on Didactics of Mathematics, Munich, 1998]]''. Hildesheim: Franzbecker. |
| *Weigand,H. G., [[Elmar Cohors-Fresenborg|Cohors-Fresenborg, E.]], Houston, K., Maier, H., Peter-Koop, A., [[Kristina Reiss|Reiss, K.]],Törner, G. & Wollring, B. (Eds.). (2001).''Developments in Mathematics Education in Germany. Selected Papers from the Annual Conference on Didactics of Mathematics, Leipzig, 1997''. Hildesheim: Franzbecker. | | *Weigand,H. G., [[Elmar Cohors-Fresenborg|Cohors-Fresenborg, E.]], Houston, K., Maier, H., Peter-Koop, A., [[Kristina Reiss|Reiss, K.]],Törner, G. & Wollring, B. (Eds.). (2001).''Developments in Mathematics Education in Germany. Selected Papers from the Annual Conference on Didactics of Mathematics, Leipzig, 1997''. Hildesheim: Franzbecker. |