TY - GEN TY - GEN T1 - Design Science and Its Importance in the German Mathematics Educational Discussion A1 - Nührenbörger, Marcus A2 - Akinwunmi, Kathrin A2 - Fung, Chun Ip A2 - Lensing, Felix A2 - Rösken-Winter, Bettina A2 - Schacht, Florian A2 - Schwarzkopf, Ralph A2 - Wittmann, Erich Christian LA - eng PP - Cham PB - Springer International Publishing YR - 2016 UL - https://kansalliskirjasto.finna.fi/Record/nelli06.3710000000765745 SN - 3-319-43541-8 SN - 3-319-43542-6 ER -