@articleBlack_Wu_2021, title=Prescribed signal concentration on the boundary: Weak solvability in a chemotaxis-Stokes system with proliferation, volume=72, DOI=10.1007/s00033-021-01565-z, number=4135, journal=Zeitschrift für angewandte Mathematik und Physik, publisher=Springer Science and Business Media LLC, author=Black, Tobias and Wu, Chunyan, year=2021 

@articleDröse_Prediger_Neugebauer_Danhier_Mertins_2021, title=Investigating students’ processes of noticing and interpreting syntactic language features in word problem solving through eye-tracking, DOI=doi.org/10.29333/iejme/9674n , journal=International Electronic Journal of Mathematics Education, 16(1), em0625, author=Dröse, Jennifer and Prediger, S. and Neugebauer, P. and Danhier, R. D. and Mertins, B., year=2021 

@articleDröse_Prediger_2021, title=Identifying obstacles is not enough for everybody – Differential efficacy of an intervention fostering fifth graders’ comprehension for word problems, DOI=doi.org/10.1016/j.stueduc.2020.100953, journal=Studies in Educational Evaluation, 68 (100953), author=Dröse, Jennifer and Prediger, S., year=2021, pages=1–15 

@articleHäsel-Weide_Seitz_Wallner_Wilke_Heckmann_2021, title=Mit Aufgaben im inklusiven Mathematikunterricht professionell umgehen - Erkenntnisse einer Interviewstudie mit Lehrpersonen der Sekundarstufe, volume=3, DOI=10.21248/qfi.57, number=1, journal=QfI - Qualifizierung für Inklusion. Online-Zeitschrift zur Forschung über Aus-, Fort- und Weiterbildung pädagogischer Fachkräfte, author=Häsel-Weide, Uta and Seitz, Simone and Wallner, Melina and Wilke, Yannik and Heckmann, Lara, year=2021 

@inproceedingsHattermann_Häsel-Weide_Wallner_2021, title=Conceptualiziation processes of 6th graders for rotational symmetry, volume=3, booktitle=Proceedings of the 44th Conference of the International Group for the Psychology of Mathematics Education , author=Hattermann, Mathias and Häsel-Weide, Uta and Wallner, Melina, editor=Inprasitha, M. and Changsri, N. and Boonsena, N., year=2021, pages=9–15 

@articleOffen_Ober-Blöbaum_2021, series=IFAC-PapersOnLine, title=Bifurcation preserving discretisations of optimal control problems, volume=54(19), DOI=https://doi.org/10.1016/j.ifacol.2021.11.099, author=Offen, Christian and Ober-Blöbaum, Sina, year=2021, pages=334–339, collection=IFAC-PapersOnLine 

@inproceedingsRidderbusch_Offen_Ober-Blöbaum_Goulart_2021, title=Learning ODE Models with Qualitative Structure Using Gaussian Processes , DOI=10.1109/CDC45484.2021.9683426, booktitle=2021 60th IEEE Conference on Decision and Control (CDC), publisher=IEEE, author=Ridderbusch, Steffen and Offen, Christian and Ober-Blöbaum, Sina and Goulart, Paul, year=2021, pages=2896 

@inproceedingsVertovec_Ober-Blöbaum_Margellos, title=Multi-objective minimum time optimal control for low-thrust trajectory design, author=Vertovec, Nikolaus and Ober-Blöbaum, Sina and Margellos, Kostas, pages=1975–1980 

@inproceedingsJiménez_Ober-Blöbaum_2021, series=J Nonlinear Sci , title=Fractional Damping Through Restricted Calculus of Variations, volume=46, booktitle=Nichtlineare Sci 31, author=Jiménez, F. and Ober-Blöbaum, Sina, year=2021, collection=J Nonlinear Sci  

@articleBruns_Unterhauser_Gasteiger_2021, title=Geometrisches Begriffsverständnis in der Grundschule am Beispiel der Begriffe Viereck, Rechteck und Quadrat, volume=42, DOI=10.1007/s13138-021-00185-4, number=2, journal=Journal für Mathematik-Didaktik, publisher=Springer Science and Business Media LLC, author=Bruns, Julia and Unterhauser, Elisabeth and Gasteiger, Hedwig, year=2021, pages=581–623 

@articlePrediger_Dröse_2021, title=Fehlerbearbeitung bei mathematischen Textaufgaben – Sprachliche und strategische Fehlerursachen und ihre Bearbeitung, DOI=doi.org/10.1024/2235-0977/a000330, journal=Lernen und Lernstörungen, 10(2), author=Prediger, Susanne and Dröse, Jennifer, year=2021 

@articleGuillarmou_Hilgert_Weich_2021, title=High frequency limits for invariant Ruelle densities, volume=4, DOI=10.5802/ahl.67, journal=Annales Henri Lebesgue, publisher=Cellule MathDoc/CEDRAM, author=Guillarmou, Colin and Hilgert, Joachim and Weich, Tobias, year=2021, pages=81–119 

@articleBrennecken_Hilgert_Ciardo_2021, title=Algebraically Independent Generators for the Algebra of Invariant Differential Operators on SLn(R)/SOn(R), volume=31, DOI=10.48550/arXiv.2008.07479, number=2, journal=Journal of Lie Theory, publisher=Heldermann Verlag, author=Brennecken, Dominik and Hilgert, Joachim and Ciardo, Lorenzo, year=2021, pages=459--468 

@bookHilgert_Hilgert_2021, title=Mathematik - Ein Reiseführer 2. Auflage, publisher=Springer Spektrum, year=2021 

@articleHilgert_Weich_Wolf_2021, title=Higher-rank quantum-classical correspondence, author=Hilgert, Joachim and Weich, Tobias and Wolf, L., year=2021 

@articleHilgert_2021, title=Philip Ording: 99 Variations on a Proof. Princeton University Press 2019, volume=68, DOI=10.1007/s00591-021-00295-7, journal=Mathematische Semesterberichte, author=Hilgert, Joachim, year=2021, pages=171–173 

@articleHilgert_2021, title=Georg Glaeser (Hrsg.): 77-mal Mathematik für zwischendurch – Unterhaltsame Kuriositäten und unorthodoxe Anwendungen. Springer Spektrum 2020, volume=68, DOI=10.1007/s00591-021-00296-6, journal=Mathematische Semesterberichte, author=Hilgert, Joachim, year=2021, pages=175–177 

@articleBinz_Kovács_2021, title=A convergent finite element algorithm for mean curvature flow in higher codimension, journal=arXiv, author=Binz, Tim and Kovács, Balázs, year=2021 

@articleBinz_Kovács_2021, title=A convergent finite element algorithm for generalized mean curvature flows of closed surfaces, volume=42, DOI=10.1093/imanum/drab043, number=3, journal=IMA Journal of Numerical Analysis, publisher=Oxford University Press (OUP), author=Binz, Tim and Kovács, Balázs, year=2021, pages=2545–2588 

@articleHarder_Kovács_2021, title=Error estimates for the Cahn–Hilliard equation with dynamic boundary conditions, volume=42, DOI=10.1093/imanum/drab045, number=3, journal=IMA Journal of Numerical Analysis, publisher=Oxford University Press (OUP), author=Harder, Paula and Kovács, Balázs, year=2021, pages=2589–2620 

@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 

@inbookBiehler_Eichler_Hochmuth_Rach_Schaper_2021, place=Berlin, Heidelberg, title=Einführung: Lehrinnovationen in der Hochschulmathematik – praxisrelevant – didaktisch fundiert – forschungsbasiert, DOI=10.1007/978-3-662-62854-6_1, booktitle=Lehrinnovationen in der Hochschulmathematik . Konzepte und Studien zur Hochschuldidaktik und Lehrerbildung Mathematik, publisher=Springer Spektrum, author=Biehler, Rolf and Eichler, Andreas and Hochmuth, Reinhard and Rach, Stefanie and Schaper, Niclas, editor=Biehler, Rolf and Eichler, Andreas and Hochmuth, Reinhard and Rach, Stefanie and Schaper, Niclas, year=2021, pages=1–6 

@inbookBiehler_2021, place=Berlin, Heidelberg, title=Mathematikvorkurse als Brücke in das Studium–Einführung, DOI=10.1007/978-3-662-62854-6_13, booktitle=Lehrinnovationen in der Hochschulmathematik . Konzepte und Studien zur Hochschuldidaktik und Lehrerbildung Mathematik, publisher=Springer Spektrum, author=Biehler, Rolf, editor=Biehler, Rolf and Eichler, Andreas and Hochmuth, Reinhard and Rach, Stefanie and Schaper, Niclas, year=2021, pages=285–290 

@articleBiehler_Fleischer_2021, title=Introducing students to machine learning with decision trees using CODAP and Jupyter Notebooks, volume=43, DOI=10.1111/test.12279, journal=Teaching Statistics, publisher=Wiley, author=Biehler, Rolf and Fleischer, Yannik, year=2021, pages=3–2 

@bookBiehler_Eichler_Hochmuth_Rach_Schaper_2021, place=Berlin, Heidelberg, title=Lehrinnovationen in der Hochschulmathematik, DOI=10.1007/978-3-662-62854-6, publisher=Springer Spektrum, year=2021 

@articleBiehler_Weigand_2021, title=3D-Geometrie–virtuell und real, volume=2021, number=228, journal=mathematik lehren, publisher=Friedrich Verlag, author=Biehler, Rolf and Weigand, Hans-Georg, year=2021, pages=2–5 

@articlePepin_Biehler_Gueudet_2021, title=Mathematics in Engineering Education: a Review of the Recent Literature with a View towards Innovative Practices, volume=7, DOI=10.1007/s40753-021-00139-8, number=2, journal=International Journal of Research in Undergraduate Mathematics Education, publisher=Springer Science and Business Media LLC, author=Pepin, Birgit and Biehler, Rolf and Gueudet, Ghislaine, year=2021, pages=163–188 

@inbookKempen_Biehler_2021, place=Berlin, Heidelberg, title=Design-Based Research in der Hochschullehre am Beispiel der Lehrveranstaltung eEinführung in die Kultur der Mathematik“, DOI=10.1007/978-3-662-62854-6_20, booktitle=Lehrinnovationen in der Hochschulmathematik . Konzepte und Studien zur Hochschuldidaktik und Lehrerbildung Mathematik, publisher=Springer Spektrum, author=Kempen, Leander and Biehler, Rolf, editor=Biehler, Rolf and Eichler, Andreas and Hochmuth, Reinhard and Rach, Stefanie and Schaper, Niclas, year=2021, pages=4773525 

@inbookWinsløw_Biehler_Jaworski_Rønning_Wawro_2021, title=Education and professional development of university mathematics teachers, DOI=10.4324/9780429346859-6, booktitle=Research and Development in University Mathematics Education, publisher=Routledge, author=Winsløw, Carl and Biehler, Rolf and Jaworski, Barbara and Rønning, Frode and Wawro, Megan, editor=Durand-Guerrier, V. and Hochmuth, R. and Nardi, E. and Winsløw, C., year=2021, pages=59–79 

@articleHöper_Malin_Biehler_2021, title=Schatten von 3D-Objekten: Modellierung mit GeoGebra 3D und Anwendungen in der Computergrafik, volume=2021, number=228, journal=mathematik lehren, publisher=Friedrich Verlag, author=Höper, Lukas and Malin, Leah and Biehler, Rolf, year=2021, pages=19–22 

@articleHüsing_Weiser_Biehler_2021, title=Faszination 3D-Film: Entwicklung einer 3D-Konstruktion, volume=2021, number=228, journal=mathematik lehren, publisher=Friedrich Verlag, author=Hüsing, Sven and Weiser, Niklas and Biehler, Rolf, year=2021, pages=23–27 

@articleSchürmann_Panse_Shaikh_Biehler_Schaper_Liebendörfer_Hilgert_2021, title=Consultation Phases in Mathematics Learning and Support Centres, volume=8, DOI=10.1007/s40753-021-00154-9, number=1, journal=International Journal of Research in Undergraduate Mathematics Education, publisher=Springer Science and Business Media LLC, author=Schürmann, Mirko and Panse, Anja and Shaikh, Zain and Biehler, Rolf and Schaper, Niclas and Liebendörfer, Michael and Hilgert, Joachim, year=2021, pages=94–120 

@articlePodworny_Biehler_2021, title=The process of actively building a model for a randomization test – insights into learners’ modeling activities based on a case study, volume=24, DOI=10.1080/10986065.2021.1922837, number=4, journal=Mathematical Thinking and Learning, publisher=Informa UK Limited, author=Podworny, Susanne and Biehler, Rolf, year=2021, pages=291–311 

@articleFrischemeier_Biehler_Podworny_Budde_2021, title=A first introduction to data science education in secondary schools: Teaching and learning about data exploration with&;scp&;CODAP&;/scp&;using survey data, volume=43, DOI=10.1111/test.12283, number=, journal=Teaching Statistics, publisher=Wiley, author=Frischemeier, Daniel and Biehler, Rolf and Podworny, Susanne and Budde, Lea, year=2021, pages=82–89 

@articleSchürmann_Liebendörfer_Gildehaus_Schaper_Hochmuth_Biehler_Lankeit_Kuklinski_Ruge_2021, title=Opportunities and Possibilities of a Network of Mathematical Learning and Support Centres in Germany, volume=22, journal=Sigma newsletter, author=Schürmann, Mirko and Liebendörfer, Michael and Gildehaus, Lara and Schaper, Niclas and Hochmuth, Reinhard and Biehler, Rolf and Lankeit, Elisa and Kuklinski, Christiane and Ruge, Johanna, year=2021, pages=5–6 

@articleSchönherr_Schukajlow_Blomberg_2021, title=Was ist eine gute Skizze? Strategiewissen beim mathematischen Modellieren im Bereich der Geometrie fördern, volume=224, journal=mathematik lehren, author=Schönherr, Johanna and Schukajlow, S. and Blomberg, J., year=2021, pages=22–27 

@articleSchönherr_Schukajlow_Blomberg_Leopold_2021, title=Does strategic knowledge matter? Effects of strategic knowledge about drawing on students’ modeling competencies in the domain of geometry, DOI=10.1080/10986065.2021.2012741, journal=Mathematical Thinking and Learning, author=Schönherr, Johanna and Schukajlow, S. and Blomberg, J. and Leopold, C., year=2021 

@articleSchönherr_Blomberg_Schukajlow_Leopold_2021, title=Do emotions and prior performance facilitate the use of the learner-generated drawing strategy? Effects of enjoyment, anxiety, and intramathematical performance on the use of the drawing strategy and modelling performance, volume=65, DOI=10.1016/j.cedpsych.2021.101967, journal=Contemporary Educational Psychology, author=Schönherr, Johanna and Blomberg, J. and Schukajlow, S. and Leopold, C., year=2021 

@articleMcLachlan_Offen_2020, title=Preservation of Bifurcations of Hamiltonian Boundary Value Problems Under Discretisation, volume=20, DOI=10.1007/s10208-020-09454-z, number=6, journal=Foundations of Computational Mathematics, author=McLachlan, Robert I and Offen, Christian, year=2020, pages=1363–1400 

@articleKreusser_McLachlan_Offen_2020, title=Detection of high codimensional bifurcations in variational PDEs, volume=33, DOI=10.1088/1361-6544/ab7293, number=5, journal=Nonlinearity, author=Kreusser, Lisa Maria and McLachlan, Robert I and Offen, Christian, year=2020, pages=2335–2363 

@inbookFlaßkamp_Ober-Blöbaum_Peitz_2020, place=Cham, title=Symmetry in Optimal Control: A Multiobjective Model Predictive Control Approach, DOI=10.1007/978-3-030-51264-4_9, booktitle=Advances in Dynamics, Optimization and Computation, publisher=Springer, author=Flaßkamp, Kathrin and Ober-Blöbaum, Sina and Peitz, Sebastian, editor=Junge, Oliver and Schütze, Oliver and Froyland, Gary and Ober-Blöbaum, Sina and Padberg-Gehle, KathrinEditors, year=2020