Abbreviations and Reference Works

CO. Ioannis Calvini Opera Quae Supersunt Omnia. Edited by G. Baum, E. Cunitz, and E. Reuss. 59 vols. Brunswick: C. A. Schwetschke, 1863–1900. Volumes 29–87 of the Corpus Reformatorum. Cited by volume and column (e.g., CO 45:276).

PG. Patrologiae Cursus Completus: Series Graeca. Edited by J.-P. Migne. 161 vols. Paris, 1857–1866. Cited by volume and column (e.g., PG 60:41).

PL. Patrologiae Cursus Completus: Series Latina. Edited by J.-P. Migne. 221 vols. Paris, 1844–1864. Cited by volume and column (e.g., PL 76:1091).

WA. D. Martin Luthers Werke: Kritische Gesamtausgabe. 120 vols. Weimar: Hermann Böhlaus Nachfolger, 1883–2009. Known as the Weimarer Ausgabe. Cited by volume and page (e.g., WA 43, 423).

X. Liber Extra (Decretalium Gregorii IX Compilatio). The decretal collection promulgated by Gregory IX in 1234. Cited by book, title, and chapter (e.g., X 5.3.1); a commentary on it is cited by the decretal it glosses (e.g., Panormitanus, Commentaria, ad X 5.3.24). Text in Friedberg, vol. 2.