Works in progress
Crown in the second half of the 16th century
Religions and Confessions in the Crown in the 18th century
Protestant communities in the 16th-18th centuries
Libraries of Wiślica praeposite in the second half of the 18th c.
Tax Registers: Kalisz Voivodeship in the 16th Century
Tax Registers: Poznań Voivodeship in the 16th Century
Materials for the dictionary of the land of Liw