Guldon, Zenon, and Waldemar Kowalski. “The Introduction to the Studies in the Church Archives: Review: H. E. Wyczawski, Preparation for Studies in Church Archives, Kalwaria Zebrzydowska 1990”. Our Past, vol. 82, Dec. 1994, pp. 381-93, doi:10.52204/np.1994.82.381-393.