J. Esquivel-Grados, S. Basilio-Reyes, R. Martínez-Zocón, and E. Basilio-Lovatón, “Youtube Videos on the Pythagorean Theorem: Didactic Analysis of the Relevance of Audiovisual Content”, revVISUAL, vol. 17, no. 8, pp. 391–404, Dec. 2025.