Tomaszewicz, A. 2009. Testamentary legacies and donations to charities in Kalisz Province between 1865 and 1914. Studia z Historii Społeczno-Gospodarczej XIX i XX Wieku. 6, (Jan. 2009), 79–122. DOI:https://doi.org/10.18778/2080-8313.06.06.