Columbia subject headings:
Matter--History.
Nicholas, of Strassburg, active 14th century. Summa. Liber 2. Tractatus 1.
Harvard subject headings:
Matter--History.
Nicholas, of Strassburg, active 14th century. Summa. Liber 2. Tractatus 1.
Princeton subject headings:
Matter.
Nikolaus, von Strassburg, 14th cent. Summa.