L'affermazione ontologica / Helmut Kuhn. - Kuhn, Helmut, 1899- (OLS)http://pul/name/13481 (Il Mulino, 1967)
IAR: CF.327

The continuity of papal political theory in the thirteenth century : Some methodological considerations / Brian Tierney. - Tierney, Brian, 1922-2019. (OLS)http://pul/name/410 (Variorum reprints, 1979)