Flores-Saviaga, Claudia, Ricardo Granados, Liliana Savage, Lizbeth Escobedo, and Saiph Savage. 2020. “Understanding the Complementary Nature of Paid and Volunteer Crowds for Content Creation”. Avances En Interacción Humano-Computadora 5 (1):37-44. https://doi.org/10.47756/aihc.y5i1.65.