Bikner, A., A.(2016).Theories in and of mathematics education theory strands in German speaking countries - ICME-13 Topical Surveys .Bremen, Germany:Springer Open.
Gaya MLA
Ahsbahs, Angelika, Bikner."Theories in and of mathematics education theory strands in German speaking countries - ICME-13 Topical Surveys".Bremen, Germany:Springer Open,2016.Electronic Resource.