Gaya APA
Niels, J., H., Lisa, H. (2019).
Traditions in German-speaking mathematics education research .
Cham, Switzerland:
Springer Open.
Gaya MLA
Jahnke, Hans, Niels., Hefendehl-Hebeker, Lisa.
"Traditions in German-speaking mathematics education research".
Cham, Switzerland:
Springer Open,
2019.
Electronic Resource.