Kaczorowski, Włodzimierz. 2016. “Journals of the Crown Seym of Sigismund III Vasa 1587/1588, Elaborated by Irena Kaniewska, Kraków 2016, 98 Pages”. The Opole Studies in Administration and Law 14 (4 (1):109-13. https://doi.org/10.25167/osap.1323.