7: Jenaer Systementwürfe. - Hegel, Georg Wilhelm Friedrich, 1770-1831. (OLS)http://ftis/name/53311; Trede, Johann Heinrich. (OLS)http://ftis/name/70078; Horstmann, Rolf-Peter. (OLS)http://ftis/name/70077 (Georg Wilhelm Friedrich Hegel Gesammelte Werke, 1971)

7.1.2: Frammenti postumi 1882-1884 : - Nietzsche, Friedrich, 1844-1900. (OLS)http://ftis/name/51781; Montinari, Mazzino. (OLS)http://ftis/name/51783; Amoroso, Leonardo. (OLS)http://ftis/name/58407 (Opere di Friedrich Nietzsche, 1986)