“Problemáticas disruptivas a través del tiempo: Breve genealogía “Ad libitum” sobre márgenes que manifestó la escuela. (Argentina, 1970-2010) / Disruptive issues through time: Brief ‘Ad libitum’ genealogy on the margins manifested by schools (Argentina, 1”, praxed, vol. 22, nº 2, p. 112–132, maio 2018, doi: 10.19137/praxiseducativa-2018-220210.