Columbia subject headings:
Harvard subject headings:
Beltrutti, Giorgio. Certosa di Pesio.
Bernard, Bishop of Belley, -1152? Quae in posterum.
Carthusians
Heinrich Egher, von Kalkar, 1328-1408. Theoria metrica.
Princeton subject headings:
Beltrutti, Giorgio. Certosa di Pesio.
Bernard, D'Ambronay. Quae in posterum.
Carthusians--History.
Heinrich Egher, von Kalkar, 1328-1408. Theoria metrica.
Ruusbroec, Jan van, 1293-1381.