Vocabulary in learning processes towards conceptual understanding of equivalent fractions—specifying students’ language demands on the basis of lexical trace analyses
L. Wessel, Mathematics Education Research Journal 32 (2019) 653–681.

Fostering German-language learners’ constructions of meanings for fractions—design and effects of a language- and mathematics-integrated intervention
S. Prediger, L. Wessel, Mathematics Education Research Journal 25 (2013) 435–456.