The text is contained in the following manuscripts:
Praha, Národní knihovna ČR, IX E 6
Edition:
Johannes Wyclif, De Ente librorum duorum excerpta, ed. M. H. Dziewicki, London 1909, 49-112.
Literature:
I. H. Stein, "Another Lost Chapter of Wyclifs Summa de Ente", In Speculum 8/2 (1933), 254-255; J. A. Robson, Wyclif and the Oxford Schools (Cambridge Studies in Medieval Life and Thought, New Series, Vol. VIII), Cambridge 1961, 121, 132;S. H. Thompson, "The Order of Writing of Wyclifs Philosophical Works", in Českou minulostí. Sborník k šedesátinám prof. Václava Novotného, ed. O. Odložilík, Praha 1929,157--158.