Columbia subject headings:
Biel, Gabriel, -1495.
Harvard subject headings:
Biel, Gabriel, -1495.
Princeton subject headings:
Biel, Gabriel, d. 1495. Collectorium circa quattuor Libros sententiarum.
Peter Lombard, Bishop of Paris, approximately 1100-1160. Sententiarum libri IV.
William, of Ockham, approximately 1285-approximately 1349. Quaestiones et decisiones in quattuor libros Sententiarum.