Religious cultures
- Critic of power and advisor of princes: the court preacher in Braunschweig-Wolfenbüttel 1568-1714
- Expanding piety: The European network of supporters of the Halle mission in South India (1730-1770)
- Historical Method and Working Techniques of the Magdeburg Centuries. Church History within an Erudite Network in the 16th Century. With a Digitized Critical Edition of the Methodical Texts
- Complete Critical Edition of the Works and Letters of Andreas Bodenstein von Karlstadt, Part 1 (1507–1518)