Dall'Agnese, Carolina Weber, João Canavilhas, and Eugenia Maria Mariano da Rocha Barichello. 2020. “The McLuhan’s Tetrad in Communication Research: Systematic Review of Applications in Brazil and Portugal”. MATRIZes 14 (1): 221-39. https://doi.org/10.11606/issn.1982-8160.v14i1p221-239.