@articleNick_Kovács_Lubich_2021, title=Correction to: Stable and convergent fully discrete interior–exterior coupling of Maxwell’s equations, volume=147, DOI=10.1007/s00211-021-01196-6, number=4, journal=Numerische Mathematik, publisher=Springer Science and Business Media LLC, author=Nick, Jörg and Kovács, Balázs and Lubich, Christian, year=2021, pages=997–1000 

@articleKovács_Li_Lubich_2021, title=A convergent evolving finite element algorithm for Willmore flow of closed surfaces, volume=149, DOI=10.1007/s00211-021-01238-z, number=3, journal=Numerische Mathematik, publisher=Springer Science and Business Media LLC, author=Kovács, Balázs and Li, Buyang and Lubich, Christian, year=2021, pages=595–643 

@articleHesse_Sloan_Womersley_2021, title=Local RBF-based penalized least-squares approximation on the sphere with noisy scattered data, volume=382, DOI=10.1016/j.cam.2020.113061, number=113061, journal=Journal of Computational and Applied Mathematics, publisher=Elsevier BV, author=Hesse, Kerstin and Sloan, Ian H. and Womersley, Robert S., year=2021 

@articleGuillarmou_Küster_2021, title=Spectral Theory of the Frame Flow on Hyperbolic 3-Manifolds, volume=22, DOI=10.1007/s00023-021-01068-7, number=11, journal=Annales Henri Poincaré, publisher=Springer Science and Business Media LLC, author=Guillarmou, Colin and Küster, Benjamin, year=2021, pages=3565–3617 

@articleRezat_Fan_Pepin_2021, title=Mathematics textbooks and curriculum resources as instruments for change, volume=53, DOI=10.1007/s11858-021-01309-3, number=6, journal=ZDM – Mathematics Education, publisher=Springer Science and Business Media LLC, author=Rezat, Sebastian and Fan, Lianghuo and Pepin, Birgit, year=2021, pages=1189–1206 

@inbookRezat_Schacht_Häsel-Weide_2021, place=London, title=Challenges of making sense of tasks and automated feedback in digital mathematics textbooks, DOI=10.4324/9781003137580, booktitle=Mathematics Education in the Digital Age. Learning, Practice and Theory, publisher=Routledge, author=Rezat, Sebastian and Schacht, Florian and Häsel-Weide, Uta, editor=Clark-Wilson, A. and Donevska-Todorova, A. and Faggiano, E. and Trgalová , J. and Weigang, H.-G., year=2021, pages=168–184 

@articleRezat_2021, title=How automated feedback from a digital mathematics textbook affects primary students’ conceptual development: two case studies, volume=53, DOI=10.1007/s11858-021-01263-0, number=6, journal=ZDM Mathematics Education, publisher=Springer, author=Rezat, Sebastian, year=2021, pages=1433–1445 

@inbookHochmuth_Biehler_Blum_Achmetli_Rode_Krawitz_Schukajlow_Bender_Haase_2021, place=Berlin, Heidelberg, title=Fachwissen zur Arithmetik bei Grundschullehramtsstudierenden – Entwicklung im ersten Semester und Veränderungen durch eine Lehrinnovation, DOI=10.1007/978-3-662-62854-6_24, booktitle=Lehrinnovationen in der Hochschulmathematik . Konzepte und Studien zur Hochschuldidaktik und Lehrerbildung Mathematik, publisher=Springer Spektrum, author=Hochmuth, Reinhard and Biehler, Rolf and Blum, Werner and Achmetli, Kay and Rode, Jana and Krawitz, Janina and Schukajlow, Stanislaw and Bender, Peter and Haase, Jürgen, editor=Biehler, Rolf and Eichler, Andreas and Hochmuth, Reinhard and Rach, Stefanie and Schaper, Niclas, year=2021, pages=611–644 

@inbookFleischmann_Biehler_Gold_Mai_2021, place=Berlin, Heidelberg, title=Integration digitaler Lernmaterialien in die Präsenzlehre am Beispiel des Mathematikvorkurses für Ingenieure an der Universität Paderborn, DOI=10.1007/978-3-662-62854-6_15, booktitle=Lehrinnovationen in der Hochschulmathematik . Konzepte und Studien zur Hochschuldidaktik und Lehrerbildung Mathematik, publisher=Springer Spektrum, author=Fleischmann, Yael and Biehler, Rolf and Gold, Alexander and Mai, Tobias, editor=Biehler, Rolf and Eichler, Andreas and Hochmuth, Reinhard and Rach, Stefanie and Schaper, Niclas, year=2021, pages=321–363 

@inbookGold_Fleischmann_Mai_Biehler_Kempen_2021, place=Berlin, Heidelberg, title=Die Online-Lernmaterialien im Online-Mathematikvorkurs studiVEMINT: Konzeption und Ergebnisse von Nutzer- und Evaluationsstudien, DOI=10.1007/978-3-662-62854-6_16, booktitle=Lehrinnovationen in der Hochschulmathematik . Konzepte und Studien zur Hochschuldidaktik und Lehrerbildung Mathematik, publisher=Springer Spektrum, author=Gold, Alexander and Fleischmann, Yael and Mai, Tobias and Biehler, Rolf and Kempen, Leander, editor=Biehler, Rolf and Eichler, Andreas and Hochmuth, Reinhard and Rach, Stefanie and Schaper, Niclas, year=2021, pages=365–397