Gratian, Decretum (ca. 1140) [text-searchable pdf] [text-searchable html]
Decretum Magistri Gratiani. Edited by Emil Friedberg. In Corpus Iuris Canonici, volume 1. Leipzig: Bernhard Tauchnitz, 1879. Reprint Graz: Akademische Druck- u. Verlagsanstalt, 1959. PDF version hosted by HathiTrust; HTML version hosted by Bayerische Staatsbibliothek.
Decretum Gratiani, first recension. Edited by Anders Winroth et al. (work in progress). [text-searchable pdf with supplemental material, hosted by Stephan Kuttner Institute of Medieval Canon Law]
Paucapalea, Summa (1146-1150) [text-searchable pdf]
Die Summa des Paucapalea über das Decretum Gratiani. Ed. Johann Friedrich von Schulte. Giessen: Emil Roth, 1890. Hosted by Bibliothèque Cujas, Université de Paris.
Rolandus, Summa (1150s-1160s) [text-searchable pdf]
Rolandus. Summa Magistri Rolandi. Mit Anhang Incerti auctoris quaestiones. Edited by Friedrich Thaner. Innsbruck: Wagner, 1872. Hosted by Colby College.
Summa Parisiensis (1160s) [text-searchable pdf]
The Summa Parisiensis on the Decretum Gratiani. Edited by Terence P. McLaughlin. Toronto: Pontifical Institute of Mediaeval Studies, 1952. Hosted by Google Books.
Stephen of Tournai, Summa (1160s) [text-searchable pdf]
Stephen of Tournai. Die summa über das Decretum Gratiani. Edited by Johann Friedrich von Schulte. Giesen, 1891. Reprint Aalen: Scientia, 1965. Hosted by Colby College.
Rufinus, Summa Decretorum (1168) [text-searchable pdf]
Rufinus. Summa Decretorum. Edited by Heinrich Singer. Paderborn: Ferdinand Schoningh, 1902. Reprint Aalen: Scientia, 1963. Hosted by Colby College.
Simon of Bisignano, Summa (ca. 1177-1179) [text-searchable pdf: text] [text-searchable pdf: prolegomena and indices]
Simon of Bisignano. Summa. Ed. P. V. Aimone. Fribourg, Switzerland, 2007. Hosted by the University of Fribourg.
Summa “Animal est substantia” (ca. 1206-1216) [text-searchable pdf]
Animal est substantia. Ed. E. C. Coppens. Unpublished. Hosted by Radboud University.
Note: this work in progress was unfinished at the time of Emile Christian Coppens’ death in 2015. The site contains material related to Distinctiones 1-101 and Causae 1-9.
Bartholomew of Brescia, Glossa ordinaria (post-1234) [high-resolution digital images]
Corpus Iuris Canonici with Glossa Ordinaria. Rome, 1582. Hosted by UCLA Digital Collections.