Roland Barthes, "Rhétorique de l'image", Communications4(1), 1964, pp. 40–51, translated as "Rhetoric of the Image", in: Roland Barthes, Image–Music–Text, essays selected and translated by Stephen Heath, New York 1977, pp. 32–51.
Alexandre Linck Vargas, A invenção dos quadrinhos: teoria e crítica da sarjeta (The Invention of Comics: Theory and Criticism of Gutters), Ph.D. thesis, Federal University of Santa Catarina, 2015, Abstract: "we stumble upon the inventions of a comics artistry, from the [1960s] on, through conflicts with the art world (Pop Art, Lowbrow Art and exhibitions), through the emergence of an authorial disposal and of an institutionalized comicphilia..."
