Historisches Wörterbuch der Philosophie - Ritter, Joachim, 1903-1974; Gründer, Karlfried; Gabriel, Gottfried, 1943-; Kranz, Margarita, 1955-; Hühn, Helmut; Eisler, Rudolf, 1873-1926 (Wissenschaftliche Buchgesellschaft, 1971)
Vol. 4-<10 > : edited by J. Ritter and K. Gründer.
Vol. 11-12 : edited by J. Ritter, K. Gründer and Gottfried Gabriel.
Vol. 13 : edited by Margarita Kranz with Gottfried Gabriel and Helmut Hühn.
Vol. 4 contains errata slip for vols. 1-4; vol. 7 contains errata slip for vols. 1-6; vol. 8 contains errata slip for vols. 1-8; vol. 9 contains errata slip for vols. 1-8; vol. 10 contains errata slip for vols. 1-9; vol. 12 contains errata slip for vols. 1-11; vol. 13 contains errata slip for vols. 1-12.
Vol. 11 and 12 contain slips with sigla and symbols.