other contributors
- Berit Biewald
- Anna Exner
- Friederike Güsewell
- Esther Holtschulte
former co-workers and employees
- Alexander Barth
- Olga Höpting
- Thomas Hübner
- Ulrike Messe
- Marius Jörg Stachowski
Edition of the letters of Philipp Jakob Spener
An edition project of the Saxon Academy of Sciences in Leipzig