M. Bogdzevič and A. Vyšniauskas, “Newspaper Report about the Panevėžys Region in 1888, a Newspaper Report by Jan Michał Witort: the Egodocumentary and Documentary Value of Written Content”, BL, vol. 4, pp. 249–267, Nov. 2018, doi: 10.15388/BibLita.2017.12140.