Professor Emeritus of Intellectual History c. 1500-c. 1700 • President of the Editorial Board of the "Erasmi Opera Omnia" • Member of the Advisory Committee of the "Collected Works of Erasmus" (Toronto) • Supervision of the international edition project of "Erasmi Opera Omnia" as from 1986

Books
• Wijze dwaasheid. Vijfhonderd jaar Lof der Zotheid in Nederland (2011)
• Het Land van Erasmus (1999)
• De Hollandse jaren van Hugo de Groot, 1583-1621 (1996, ed. with H.J.M. Nellen)
• De Summa der godliker scrifturen, 1523 (1978)

Articles
• "Erasmus on Lying and simulation" in: On the Edge of Truth and Honesty. Intersections. Yearbook for early modern studies 2,  eds. T. van Houdt et al. (2002), 33-46
• "Thomas Bray (1658-1730), founder of libraries in Great Britain and America and his edition of Erasmus' Ecclesiastes (1730)" in: Querdenken. Dissens und Toleranz im Wandel der Geschichte. Festschrift zum 65. Geburtstag von Hans R. Guggisberg, eds. Michael Erbe et al. (1996), 393-404
• "Grotius and Erasmus" in: Hugo Grotius Theologian. Essays in honour of G.H.M. Posthumus Meyjes, eds. H.J.M. Nellen & E. Rabbie (1994), 77-98
• "Erasmus seen by a Dutch Collegiant: Daniel de Breen (1594-1664) and his posthumous Compendium Theologiae Erasmicae (1677)" in: Dutch Review of Church History, 73 (1993), 156-177

Work in progress
Erasmus and the Netherlands 1500-2000