For the philosophy of Aquinas, see Albert Stockl, Geschichte der Philosophic des Mittelalters, ii.; B.
Stockl, Geschichte d.
865; Stockl, Phil.
Stockl, De Joh.
For an account of his logic, see Prantl, Geschichte der Logik (1855-1870); for his philosophy, see Stockl, Geschichte der Philosophie des Mittelalters (1864-1866), vol.
Stockl and Karl Werner give the fullest and most trustworthy histories of the medieval period, but the subject is very carefully treated by Erdmann and Ueberweg, and a useful compendium, written from a Roman Catholic standpoint, is De Wulf's History of Medieval Philosophy (1900; Eng.