Jaimez-González, C. R., & Martínez-Samora, J. (2020). DiagrammER: A Web Application to Support the Teaching-Learning Process of Database Courses Through the Creation of E-R Diagrams. International Journal of Emerging Technologies in Learning (iJET), 15(19), pp. 4–21. https://doi.org/10.3991/ijet.v15i19.14745