TY  - DATA
AU  - Marcus Nuhrenborger
AU  -  Bettina Rosken-Winter
AU  -  Chun Ip Fung
TI  - Design Science and Its Importance in the German Mathematics Educational Discussion
T2  - ICME-13 Topical Surveys
SN  - 9783319435428
PB  - Springer
KW  - Education
UR  - https://link.springer.com/openurl?genre=book&isbn=978-3-319-43542-8
ER  -