Kokushkin, V, Park, M, Arnold, R, and Norton, A. A Design-Based Research Approach to Addressing Epistemological Obstacles in Introductory Proofs Courses. Retrieved from https://par.nsf.gov/biblio/10547683.

Kokushkin, V, Park, M, Arnold, R, & Norton, A. A Design-Based Research Approach to Addressing Epistemological Obstacles in Introductory Proofs Courses. Retrieved from https://par.nsf.gov/biblio/10547683.

Kokushkin, V, Park, M, Arnold, R, and Norton, A. "A Design-Based Research Approach to Addressing Epistemological Obstacles in Introductory Proofs Courses". Country unknown/Code not available: A Design-Based Research Approach to Addressing Epistemological Obstacles in Introductory Proofs Courses. Proceedings of the 25th annual conference for Research in Undergraduate Mathematics Education. Omaha, NE.. https://par.nsf.gov/biblio/10547683.

@article{osti_10547683,
place = {Country unknown/Code not available}, title = {A Design-Based Research Approach to Addressing Epistemological Obstacles in Introductory Proofs Courses}, url = {https://par.nsf.gov/biblio/10547683}, abstractNote = {}, journal = {}, publisher = {A Design-Based Research Approach to Addressing Epistemological Obstacles in Introductory Proofs Courses. Proceedings of the 25th annual conference for Research in Undergraduate Mathematics Education. Omaha, NE.}, author = {Kokushkin, V and Park, M and Arnold, R and Norton, A}, }