cContributing Editord für die Sektion cPhilosophy of Mathematicsd in: The History of Mathematics from Antiquity to the Present: A Selective Annotated Bibliography, edited by Joseph W. Dauben, revised edition on CD-ROM by Albert C. Lewis, in cooperation with the International Commission on the History Mathematics, American Mathematical Society
V. Peckhaus, ed., “Contributing Editor” Für Die Sektion “Philosophy of Mathematics” in: The History of Mathematics from Antiquity to the Present: A Selective Annotated Bibliography, Edited by Joseph W. Dauben, Revised Edition on CD-ROM by Albert C. Lewis, in Cooperation with the International Commission on the History Mathematics, American Mathematical Society, 2000.