Ambrus A, Barczi-Veres K. Realizing the problem-solving phases of Pólya in classroom practice. Teach. Math. Comp. Sci. [Internet]. 2022 Dec. 7 [cited 2025 Dec. 6];20(2):219-32. Available from: https://ojs.lib.unideb.hu/tmcs/article/view/12083